Question

Find A and B If cos(A-B) = sin(A + B)and A, B are acute angles whose sum is acute​

Answer 1

Step-by-step explanation:

cos (A-B) = sin (A+B)

sin(90 - (A - B) = sin (A+ B)

90 - A +B = A+B

90 - A = A

90 = 2A

A = 45

A + B = 90

45 + B = 90

B = 90 - 45

B = 45

Answer 2

Answer:

The value of A =45,B=45