Question

If Cos 7A=Sin (A-6) find the value of A​

Answer 1

Answer:

Step-by-step explanation:

given cos7A=sin(A-6)

sin(90-7A)=sin(A-6)

since (90-7A) and (A-6) ARE BOTH ACUTE ANGLES

THEREFORE

90-7A=A-6

8A=96

A=12 DEGREES