Question

if sinA= 24/25, then the value of CosA is
a) 7/25
b) 24/25
c) 1
d) none of these​

Answer 1

Answer:

a) 7/25

Step-by-step explanation:

sinA = 24/25

sinA = opp. side to A/hypotenuse

So, opp. side to A =24

     hypotenuse =25

By Pythagoras theorem,

we get third side(adj. side to A) =7

So,

cosA = adj. side to A/hypotenuse

cosA = 7/25