Question

Briefly explain your knowledge of sine, cosine, and tangent.

Answer 1

Sine, Cosine and Tangent are main functions used in Trigonometry .

They are based on a Right-Angled Triangle.

It helps to give a name to each side of a right triangle:

"Opposite" ; side opposite to the angle θ

"Adjacent"; side adjacent (next to) to the angle θ,

"Hypotenuse" ; the longest side

Explanation:

Sine, Cosine and Tangent (are often shortened as sin, cos and tan)

They are used in calculation by;

`Sin \alpha = (Opposite)/(Hypotenuse)\\ \\Cos \alpha = (Adjacent)/(Hypotenuse)\\ \\Tan \alpha = (Opposite)/(Adjacent)`

To remember how to apply them , we use

SOHCAHTOA

soh

Sin = Opposite / Hypotenuse

cah

Cosine = Adjacent / Hypotenuse

toa

Tangent = Opposite / Adjacent

I hope it helps :)