Question

If sin (A-B) = 1 and cos (A+B) = 1/2 then find
A and B.​

Answer 1

Answer:

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Step-by-step explanatio

sin( A-B) = 1/2

sin( A-B)= sin30

A-B= 30.......(1)

cos(A+B)= 1/2

cos(A+B) = cos60

A+B= 60.......(2)

solving eq(1)&eq(2) by elimination method

we get A= 45°and B= 15°

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