This document provides information about trigonometry including definitions of trigonometric ratios, working with right triangles, and trigonometric ratios for special angles. It defines the sine, cosine, and tangent ratios for an angle in a right triangle. It also defines cosecant, secant, and cotangent as the reciprocals of sine, cosine, and tangent respectively. Examples are provided to demonstrate calculating trigonometric ratios in right triangles. The document also provides trigonometric ratio values for specific angles including 0°, 30°, 45°, 60°, and 90° to help determine an angle value given a ratio.
5.13.3 Geometric Probability and Changing Dimensionssmiller5
Students will
* Calculate geometric probabilities
* Use geometric probability to predict results in real-world situations
* Predict the effects of changing dimensions on the perimeter/circumference and area of a figure.
Vista's Learning is one of the leading e-learning platforms shaping the future of the country's education sector.
With the latest AR technology in the web application and personalized methods of learning concepts, Vista's Learning offers a wide variety of features - live classes, pre-recorded classes covering state boards and CBSE, one-on-one coaching, social media and many more. Classes are provided for K-12 and in different regional languages to understand the concepts even better. Languages include - English, Hindi, Kannada, Telugu, Malayalam and Tamil.
https://v-learning.in/live-course/1879/kseeb-cbse-maths-sample-paper-term-1-vistas-learning
Pedagogy of Mathematics (Part II) - Geometry, Geometry, Maths, IX std Maths, Samacheerkalvi maths, II year B.Ed., Pedagogy, Mathematics, Quadrilaterals, polygons, concave polygon, convex polygon, special names for some quadrilaterals, Types of quadrilaterals, properties of quadrilaterals,
MATHS SYMBOLS - TRIANGLES - FIRST PROPERTIES - POLYGONAL CHAINS and POLYGONS - DEFINITION - MEASURES of the SIDES - TYPES of TRIANGLES - EQUILATERAL ACUTE - ISOSCELES ACUTE - ISOSCELES RIGHT - ISOSCELES OBTUSE - SCALENE ACUTE - SCALENE RIGHT - SCALENE OBTUSE - SUM of the INTERIOR ANGLES - EXTERIOR ANGLES THEOREM - SUM of the EXTERIOR ANGLES - PROOFS STEP by STEP
5.13.3 Geometric Probability and Changing Dimensionssmiller5
Students will
* Calculate geometric probabilities
* Use geometric probability to predict results in real-world situations
* Predict the effects of changing dimensions on the perimeter/circumference and area of a figure.
Vista's Learning is one of the leading e-learning platforms shaping the future of the country's education sector.
With the latest AR technology in the web application and personalized methods of learning concepts, Vista's Learning offers a wide variety of features - live classes, pre-recorded classes covering state boards and CBSE, one-on-one coaching, social media and many more. Classes are provided for K-12 and in different regional languages to understand the concepts even better. Languages include - English, Hindi, Kannada, Telugu, Malayalam and Tamil.
https://v-learning.in/live-course/1879/kseeb-cbse-maths-sample-paper-term-1-vistas-learning
Pedagogy of Mathematics (Part II) - Geometry, Geometry, Maths, IX std Maths, Samacheerkalvi maths, II year B.Ed., Pedagogy, Mathematics, Quadrilaterals, polygons, concave polygon, convex polygon, special names for some quadrilaterals, Types of quadrilaterals, properties of quadrilaterals,
MATHS SYMBOLS - TRIANGLES - FIRST PROPERTIES - POLYGONAL CHAINS and POLYGONS - DEFINITION - MEASURES of the SIDES - TYPES of TRIANGLES - EQUILATERAL ACUTE - ISOSCELES ACUTE - ISOSCELES RIGHT - ISOSCELES OBTUSE - SCALENE ACUTE - SCALENE RIGHT - SCALENE OBTUSE - SUM of the INTERIOR ANGLES - EXTERIOR ANGLES THEOREM - SUM of the EXTERIOR ANGLES - PROOFS STEP by STEP
Questions and Solutions Basic Trigonometry.pdferbisyaputra
Unlock a deep understanding of mathematics with our Module and Summary! Clear definitions, comprehensive discussions, relevant example problems, and step-by-step solutions will guide you through mathematical concepts effortlessly. Learn with a systematic approach and discover the magic in every step of your learning journey. Mathematics doesn't have to be complicated—let's make it simple and enjoyable!
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
8. BASIC CONSEPT OF ANGLE
Mr. Yahya was a guard of the school. The Height of Mr. Yahya is
1,6 m. He has a son, his name is Dani. Dani still class II
elementary school. His body height is 1, 2 m. Dani is a good
boy and likes to ask. He once asked his father about the height
of the flagpole on the field. His father replied with a smile, 8
m. One afternoon, when he accompanied his father cleared the
weeds in the field, Dani see shadows any objects on the
ground. He takes the gauge and measure the length of his
father shadow and the length of flagpole’s shadow are 6,4 m
and 32 m. But he couldn’t measure the length of his own
because his shadow follow ing his progression.
PROBLEM
9. A
B E
G C
F
D
XO
Where :
AB = The height of flagpole (8 m)
BC = The lenght of the pole’s shadow
DE = The height of Mr. Yahya
EC = The length of Mr. Yahya’s Shadow
FG = The height of Dani
GC = The Lenght of Dani’s shadow
6,4
8
1,6
1,2
32 f
10. CE
D
A
B C CG
F
g8
32
1,6
6,4
1,2
1088 43,52
f
𝐹𝐺
𝐷𝐸
=
𝐺𝐶
𝐸𝐶
=
1,2
1,6
=
𝑓
6,4
. f = 4,8
𝐹𝐶 = 𝑔 = 24,48
a. ____ = ____ = ____ = ________ = ________ = ______ = ____________________ =
24,48 43,52 1088
Opposite side the angleFG
GC
DE
EC EC
AB 1,2 1,6 8
Hytenuse of triangles
0,24
the sine of the angle C,
written sin x0 = 0.24
b. ____ = ____ = ____ = ________ = ________ = ______ = _______________________ =
24,48 43,52 1088
adjacentGC
FC
EC
DC AC
BC 4,8 6,4 32
Hypotenuse of triangle
0,97
the cosine of the angle C,
written cos x0 = 0.97
c. ____ = ____ = ____ = ________ = ________ = ______ = _______________________ =
4,8 6,4 32
Opposite side the angleFG
GC
DE
EC BC
AB 1,2 1,6 8
adjacent
0,25
the tangent of the angle C,
written tan x0 = 0.25
11. PROBLEM
1,5 m
8 m
9,5m
𝛼
Undu standing 8 m in front of the
pine tree with height of 9.5 m. If the
height of Undu is 1,5 m. Determine
the trigonometric ratio of Angle 𝛼.
12. Where :
AC = The height Of Pine Tree
ED = The height of Undu
DC = The distance between Tree and Undu
1,5 m
8 m
A
B
CD
E 𝜶
9,5 m
SOLUTION
𝑠𝑖𝑛 𝛼? 𝑐𝑜𝑠 𝛼? 𝑡𝑎𝑛 𝛼?
Find EA!
8 2
𝐸𝐴 = 𝐸𝐵2 + 𝐴𝐵2
= 82 + 9,5 − 1,5 2
= 64 + 64
= 128
= 8 2
𝑐𝑜𝑠 𝛼 =
8
8 2
=
1
2
2
𝑡𝑎𝑛 𝛼 =
8
8
= 1
𝑠𝑖𝑛 𝛼 =
8
8 2
=
1
2
2
14. the sine of an angle is the length of
the opposite side divided by the
length of the hypotenuse.
DEFINITION
B
P J
sin 𝐽 =
𝑃𝐵
𝐵𝐽
the cosine of an angle is the length of
the adjacent side divided by the length
of the hypotenuse.
𝑐𝑜𝑠 𝐽 =
𝑃𝐽
𝐵𝐽
the tangent of an angle is the
length of the opposite side
divided by the length of the
adjacent side.
𝑡𝑎𝑛 𝐽 =
𝑃𝐵
𝑃𝐽
15. the cosecant of an angle is the
length of the hypotenuse divided by
the length of the opposite side.
Written :
DEFINITION
B
P J
cos𝑒𝑐 𝐽 =
𝐵𝐽
𝑃𝐵
the secant of an angle is the length of
the hypotenuse divided by the length of
the adjacent side.Written:
𝑠𝑒𝑐 𝐽 =
𝐵𝐽
𝑃𝐽
the tangent of an angle is
the length of the adjacent
side divided by the length of
the opposite side. written :
𝑐𝑜𝑡 𝐽 =
𝑃𝐽
𝑃𝐵
cos𝑒𝑐 𝐽 =
1
sin 𝐽
𝑠𝑒𝑐 𝐽 =
1
cos 𝐽
𝑐𝑜𝑡 𝐽 =
1
tan 𝐽
16. S O H C A H T O A
REMEMBER
i
n
p
p
o
s
i
t
e
y
p
o
t
e
n
u
s
e
o
s
d
j
a
c
e
n
t
y
p
o
t
e
n
u
s
e
a
n
p
p
s
o
s
i
t
e
d
j
a
c
e
n
t
17. EXAMPLE
Given right triangle ABC, right-angled at ∠ ABC. If the length
of the side AB = 3 units, BC = 4 units. Determine sin A, cos A,
and tan A.
C
BA 3 units
4 units
18. C
BA 3 units
4 un
From the figure below,
𝐴𝐶 = 𝐵𝐶2 + 𝐴𝐵2 = 32 + 42 = 5
𝑆𝑖𝑛 𝐴 =
Cos 𝐴 =
Tan 𝐴 =
𝑡ℎ𝑒 𝑙𝑒𝑛𝑔𝑡ℎ 𝑜𝑓 𝑜𝑝𝑝𝑜𝑠𝑖𝑡𝑒 𝑠𝑖𝑑𝑒 𝑡ℎ𝑒 𝑎𝑛𝑔𝑙𝑒 𝐴
𝑡ℎ𝑒 𝑙𝑒𝑛𝑔𝑡ℎ 𝑜𝑓 ℎ𝑦𝑝𝑜𝑡𝑒𝑛𝑢𝑠𝑒
=
𝑡ℎ𝑒 𝑙𝑒𝑛𝑔𝑡ℎ 𝑜𝑓 𝑎𝑑𝑗𝑎𝑐𝑒𝑛𝑡 𝑜𝑓 𝑎𝑛𝑔𝑙𝑒 𝐴
𝑡ℎ𝑒 𝑙𝑒𝑛𝑔𝑡ℎ 𝑜𝑓 ℎ𝑦𝑝𝑜𝑡𝑒𝑛𝑢𝑠𝑒
𝑡ℎ𝑒 𝑙𝑒𝑛𝑔𝑡ℎ 𝑜𝑓 𝑜𝑝𝑝𝑜𝑠𝑖𝑡𝑒 𝑠𝑖𝑑𝑒 𝑡ℎ𝑒 𝑎𝑛𝑔𝑙𝑒 𝐴
𝑡ℎ𝑒 𝑙𝑒𝑛𝑔𝑡ℎ 𝑜𝑓 𝑎𝑑𝑗𝑎𝑐𝑒𝑛𝑡 𝑜𝑓 𝑎𝑛𝑔𝑙𝑒 𝐴
4
5
=
3
5
=
4
3
19. Ratio for Specific Angles
A(x,y)
x
y
r
Y
O
X
Suppose point A (x, y), the length
OA = r and the angle AOX = α.
𝑆𝑖𝑛 α =
Cos 𝛼 =
Tan 𝛼 =
𝑦
𝑟
𝑥
𝑟
𝑦
𝑥
𝛼
A(-x,y)
-x
y
r
Y
O
X
𝑆𝑖𝑛 α =
Cos 𝛼 =
Tan 𝛼 =
𝑦
𝑟
−
𝑥
𝑟
−
𝑦
𝑥
Quadrant II (90o-180o)Quadrant III (180o-270o)
Y
O
X
A(-x,-y) -x
-y
r
𝑆𝑖𝑛 α =
Cos 𝛼 =
Tan 𝛼 =
−
𝑦
𝑟
−
𝑥
𝑟
𝑦
𝑥
O
A(x,-y)
x
-y
r
Y
X
Quadrant IV (270o-360o)
𝑆𝑖𝑛 𝛼 =
Cos 𝛼 =
Tan 𝛼 =
−
𝑦
𝑟
𝑥
𝑟
−
𝑦
𝑥
21. EXAMPLE
Suppose given points A(-12,5) and ∠XOA = α.
Determine the value of sin α, cos α and tan α
SOLUTION
x = -12 and y = 5. Quadrant II
A(-12,5)
5
O
Y
X
α
Cos 𝐴 = −
12
13
Tan 𝐴 = −
5
12
𝑆𝑖𝑛 𝐴 =
5
13
12
𝑋𝑂 = 12 2 + 52
= 144 + 25
= 169
= 13
13
22. Trigonometric Ration For Special Angles
0o, 30°, 45°,60° and 90o
45o
45o
30o
60o 60o
M
K LP
A
B C
22
1 1
25. P(x,y)
1
1NO x
y
X
Y
ᶿ
sin 𝜃 =
𝑦
1
= 𝑦 cos 𝜃 =
𝑥
1
= 𝑥 tan 𝜃 =
𝑦
𝑥
If 𝜃 = 0 𝑜, then P(1,0)
• sin 0° = y = 0
• cos 0° = x = 1
• tan 0° = y/x = 0/1=0
• sin 90° = y = 1
• cos 90° = x = 0
• tan 90° =y/x =1/0, undefine
If 𝜃 = 90 𝑜
, then P(0,1)
26. Trigonometric ratios of Special Angles
𝛼 0 𝑜 30 𝑜 45 𝑜 60 𝑜 90 𝑜
Sin 𝛼 0
1
2
1
2
2
1
2
3 1
Cos 𝛼 1
1
2
3 1
2
2
1
2
0
Tan 𝛼 0
1
3
3 1 3 ∞
27. Anzar want to determine Angle size from a
trigonometric ratio. Given to her ratio as follows.
sin 𝛼 =
1
2
, He must to determine the value of α
(Angle size)
PROBLEM