The document contains 12 math problems involving expansions of binomial expressions, arithmetic progressions, and other algebra topics. The problems are multi-step and require setting up and solving equations. No final answers are provided.
On Triplet of Positive Integers Such That the Sum of Any Two of Them is a Per...inventionjournals
In this article we discussed determination of distinct positive integers a, b, c such that a + b, a + c, b + c are perfect squares. We can determine infinitely many such triplets. There are such four tuples and from them eliminating any one number we obtain triplets with the specific property. We can also obtain infinitely many such triplets from a single triplet.
On Triplet of Positive Integers Such That the Sum of Any Two of Them is a Per...inventionjournals
In this article we discussed determination of distinct positive integers a, b, c such that a + b, a + c, b + c are perfect squares. We can determine infinitely many such triplets. There are such four tuples and from them eliminating any one number we obtain triplets with the specific property. We can also obtain infinitely many such triplets from a single triplet.
The simplest and most common form of mathematical induction infers that a statement involving a natural number n (that is, an integer n ≥ 0 or 1) holds for all values of n. The proof consists of two steps:
The base case (or initial case): prove that the statement holds for 0, or 1.
The induction step (or inductive step, or step case): prove that for every n, if the statement holds for n, then it holds for n + 1. In other words, assume that the statement holds for some arbitrary natural number n, and prove that the statement holds for n + 1
SEQUENCE AND SERIES
SEQUENCE
Is a set of numbers written in a definite order such that there is a rule by which the terms are obtained. Or
Is a set of number with a simple pattern.
Example
1. A set of even numbers
• 2, 4, 6, 8, 10 ……
2. A set of odd numbers
• 1, 3, 5, 7, 9, 11….
Knowing the pattern the next number from the previous can be obtained.
Example
1. Find the next term from the sequence
• 2, 7, 12, 17, 22, 27, 32
The next term is 37.
2. Given the sequence
• 2, 4, 6, 8, 10, 12………
ER Publication,
IJETR, IJMCTR,
Journals,
International Journals,
High Impact Journals,
Monthly Journal,
Good quality Journals,
Research,
Research Papers,
Research Article,
Free Journals, Open access Journals,
erpublication.org,
Engineering Journal,
Science Journals,
The simplest and most common form of mathematical induction infers that a statement involving a natural number n (that is, an integer n ≥ 0 or 1) holds for all values of n. The proof consists of two steps:
The base case (or initial case): prove that the statement holds for 0, or 1.
The induction step (or inductive step, or step case): prove that for every n, if the statement holds for n, then it holds for n + 1. In other words, assume that the statement holds for some arbitrary natural number n, and prove that the statement holds for n + 1
SEQUENCE AND SERIES
SEQUENCE
Is a set of numbers written in a definite order such that there is a rule by which the terms are obtained. Or
Is a set of number with a simple pattern.
Example
1. A set of even numbers
• 2, 4, 6, 8, 10 ……
2. A set of odd numbers
• 1, 3, 5, 7, 9, 11….
Knowing the pattern the next number from the previous can be obtained.
Example
1. Find the next term from the sequence
• 2, 7, 12, 17, 22, 27, 32
The next term is 37.
2. Given the sequence
• 2, 4, 6, 8, 10, 12………
ER Publication,
IJETR, IJMCTR,
Journals,
International Journals,
High Impact Journals,
Monthly Journal,
Good quality Journals,
Research,
Research Papers,
Research Article,
Free Journals, Open access Journals,
erpublication.org,
Engineering Journal,
Science Journals,
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
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.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Embracing GenAI - A Strategic ImperativePeter 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.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
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.
1. Roll No. :
Date :
Time -
MM - 70
2
Ans :
4
2.
Ans :
4
3.
Ans :
4
4.
Ans :
Find the number of terms in the expansion of (a + 2b – 3c)n.
Consider (a + 2b – 3c)n = {a + (2b – 3c)}n = nC0 an + nC1 an–1(2b – 3c) + nC2 an–2(2b –
3c)2 + ... + nCn(2b – 3c)n.
We notice first term gives one term, second term gives two terms, third term gives three
terms and so on.
∴ Total terms 1 + 2 + ... + n + (n + 1) =
Find the middle term(s) in the expansion of : (1 + x)2n
Since, 2n would always be even so (n + 1)th term would be the middle term
∴
The coefficients of 2nd, 3rd and 4th terms in the expansion of (1 + x)2n are in A.P., prove that 2n2
– 9n + 7 = 0
2nC1, 2nC2, 2nC3 are in A.P.
⇒ 2. 2nC2 = 2nC1 + 2nC3
⇒
⇒ 2n2 – 9n + 7 = 0
If Tr is rth term in the expansion of (1 + x)n in the ascending powers of x, prove that r (r + 1) Tr+2
= (n – r + 1) (n – r)x2 Tr.
LHS = r (r + 1) Tr+2 = r (r + 1). nCr+1 xr+1
= r (r + 1)
=
RHS = (n – r + 1) (n – r) x2 Tr
= (n – r + 1) (n – r)x2. nCr–1 xr–1
= (n – r + 1) (n – r). x2 .
=
LHS = RHS
2. 4
5.
Ans :
4
6.
If the 3rd, 4th, 5th and 6th terms in the expansion of (x + y)n be a, b, c and d respectively, prove
that
If a, b, c be the three consecutive coefficients in the expansion of (1 + x)n, prove that n =
3. Ans :
4
7.
Ans :
4
8.
Using binomial theorem, prove that 6n – 5n always leaves remainder 1 when divided by 25.
For two numbers a and b if we can find numbers q and r such that a = bq + r, then we
say that b divides a with q as quotient and r as remainder. Thus, in order to show that 6n
– 5n leaves remainder 1 when divided by 25, we prove that 6n – 5n = 25k + 1, where k is
some natural number.
We have
(1 + a)n = nC0 + nC1a + nC2a2 + ... nCnan
For a = 5, we get
(1 + 5)n = nC0 + nC15 + nC252 + ... nCn5n
i.e. (6)n = 1 + 5n + 52 nC2 + 53 nC3 + ... + 5n
i.e. 6n – 5n = 1 + 52 (nC2 + nC3 5 + ... + 5n–2)
or 6n – 5n = 1 + 25 (nC2 + 5. nC3 + ... + 5n–2)
or 6n – 5n = 25k + 1
where k = nC2 + 5. nC3 + ... + 5n–2
This shows that when divided by 25, 6n – 5n leaves remainder 1.
If a1, a2, a3 and a4 are the coefficient of any four consecutive terms in the expansion of (1 + x)n,
prove that
4. Ans :
4
9.
Let a1, a2, a3 and a4 be the coefficient of four consecutive terms Tr+1, Tr+2, Tr+3 and Tr+4
respectively. Then
a1 = coefficient of Tr+1 = nCr
a2 = coefficient of Tr+2 = nCr+1
a3 = coefficient of Tr+3 = nCr+2
and a4 = coefficient of Tr+4 = nCr+3
Find the sum (33 – 23) + (53 – 43) + (73 – 63) + ... 10 terms.
5. Ans :
4
10.
Ans :
4
11.
Ans :
4
12.
Sum = (33 + 53 + 73 + ...) – (23 + 43 + 63 + ...)
For 33 + 53 + 73 + ...
an = (2n + 1)3 = 8n3 + 12n2 + 6n + 1
∴ S1 = 8 Σn3 + 12 Σn2 + 6 Σn + n ... (i)
For 23 + 43 + 63 + ...
an = (2n)3 = 8n3
S2 = 8Σn3 ... (ii)
∴ Sum = S1 – S2 = 12 Σn2 + 6 Σn + n [From (i), (ii)]
Sum to 10 terms =
= 4620 + 330 + 10 = 4960
If a, b, c be the first, third and nth term respectively of an A.P. Prove that the sum to n terms is
Given first term = a, a3 = b and an = c
Sn = [2a + (n – 1)d] ... (i)
We have first term = a
b = a + 2d and a + (n – 1) d = c
Sn = [a + c] [From (i)] ... (ii)
Also a + (n – 1) = c
⇒ n – 1 =
Substituting in (ii), we get
Sn =
If a, b, c are in G.P and . Prove that x, y, z are in A.P.
⇒ a = kx, b = ky, c = kz
Given b2 = ac ⇒ (ky)2 = kx. kz ⇒ k2y = kx + z
⇒ 2y = x + z ⇒ x, y, z in A.P.
If a1, a2, a3, ... an are in A.P., where ai > 0 for all i, show that
=
6. Ans :
4
13. The ratio of the A.M. and G.M. of two positive numbers a and b is m : n, show that:
7. Ans :
4
14.
Given A.M. : G.M. = m : n
If p, q, r are in G.P. and the equations px2 + 2qx + r = 0 and dx2 + 2ex + f = 0 have a common
root then show that are in A.P.
8. Ans :
6
15.
Ans :
4
16.
Given p, q, r are in G.P.
⇒ q2 = pr …(i)
Equations px2 + 2qx + r = 0 and dx2 + 2ex + f = 0
have common root …(ii)
Substituting for q, from (i) in px2 + 2qx + r = 0
Find the sum of, + .......................... up to n terms.
If S1, S2, S3, ......, Sm are the sums of n terms of m A.P.'s whose first terms are 1, 2, 3, ......, m
and common differences are 1, 3, 5, ......, 2m – 1 respectively, show that S1 + S2 + S3 + ...... + Sm =
9. Ans :
6
17.
Ans :
mn (mn + 1)
S1 = Σ(1, 2, 3..............) = [2.1 + (n – 1).1]
S2 = Σ(2, 5, 8..............) = [2.2 + (n – 1).3]
S3 = Σ(3, 8, 13............) = [2.3 + (n – 1).5]
Sm = [2.m + (n – 1) (2m – 1)]
S1 + S2 + ...... + Sm = [2 (1 + 2 + 3.......m) + (n – 1) (1 + 3 + 5........+ 2m – 1)]
=
=
If A and G be A.M. and G.M., respectively between two positive numbers, prove that the
numbers are A ± .
Let the numbers be a and b.
= A ⇒ a + b = 2A ...(i)
= G ⇒ ab = G2
(a – b)2 = (a + b)2 – 4ab = 4A2 – 4G2
⇒ 4(A2 – G2)
a – b = ...(ii)
From (i) and (ii), we get
a = A + and b = A –
Hence, the numbers are A ±