Question

if sinA = cos5A then A = ?​

Answer 1

Answer:

Step-by-step explanation:

sin 5A =cos 4A

we know sin (90-@) =cos@

use this

sin 5A = sin (90-4A)

5A = 90 -4A

9A = 90

A= 10

Answer 2

Refer to the image attached