Question

find A if sinA = cos(A-30*) where A and (A-30*)are acute angeles ​

Answer 1

Answer:

60°

Step-by-step explanation:

Solution is in the photo

Answer 2

Answer:

sinA=cos(90-A)

cos(90-A)=cos(A-30)

90-A=A-30

2A=90+30

2A=120

A=60°