Question

If sin3A=cos(A-6) finf A

Answer 1

On simplifying it, A is equals to 24

Answer 2

sin 3A = cos (A-6)

sin 3A = sin (90-(A-6))

( since sin(90- A) = cos A)

therefore,
3A = 90-(A-6)

3A = 90-A+6

3A+A = 96

4A = 96

A = 96/4

A = 24