Question

82) Find A and B if
Sin (A+B) = 1 and cos (A-B) = 1​

Answer 1

Answer:

case 1l sin(A+B) =1

i.e. A+B = 90

case 2) cos (A-B) =1

i.e. A-B =0

so comparing and solving both equ.

ans. is . A=B =45° ..

hope it helps..