Question

with the help of the adjacent figure prove how:
sin alpha = cos beta
​

Answer 1

Answer:

sin alpha=cos beta=a/c

Step-by-step explanation:

we know,

sin alpha=perpendicular/hypotenuse

So,According To The Figure

The side opposite to Alpha is BC which is the perpendicular i.e a and hypotenuse is the side AB which is c .So Sin alpha is a/c

Again,

for Cos Beta

cos beta=Base /Hypotenuse

So, BC is base i.e a and hypotenuse is c

Cos Beta=a/c