Question

if sin 3A = cos(A=26)
find the value of A​

Answer 1

A=29

This is your correct answer..

Answer 2

Answer:

sin(90°- ∅) = cos∅

cos ( 90° - 3A) = cos (A - 26°)

90°- 3A = A - 26°

90° + 26° = A+3A

116° = 4A

A = 116°/4

A = 29°

I hope this answer will help you mate!☺️