Trigonometry Pls like the page https://www.facebook.com/funinrubiks

1. TRIGONOMETRY

4. sin(θ) = Opposite /Hypotenuse
cos(θ) = Adjacent /Hypotenuse
tan(θ) = Opposite /Adjacent

5. In this triangle
sinθ= AB/BC
cosθ= AC/BC
tanθ= AB/AC

6. sec(θ) = Hypotenuse / Adjacent(=1/cos)
cosec(θ) = Hypotenuse / Opposite(=1/sin)
cot(θ) = Adjacent / Opposite(=1/tan)

7. secθ=BC/AC
cosecθ=BC/AB
cotθ=AC/AB

8. It is used in finding the distance
between celestial bodies.
Trigonometry is commonly used in
finding the height of towers and
mountains.
Uses

9. The sine and cosine functions are
fundamental to the theory of periodic
functions such as those that describe
sound and light waves.
It is used in navigation to find the
distance of the shore from a point in
the sea.

10. =
1+tan2 45= sec2 45
L.H.S
=1+ (12) tan45=1
=1+1
=2
R.H.S
=(sqrt2)2 sec45=sqrt(2)
=2
L.H.S = R.H.S=2
HENCE PROVED

11. RAJAT
GUPTA