Question

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

Answer 1

Answer:

A= 45°

B=15°

Step-by-step explanation:

since, sin(A-B) = 1/2

and sin(30°) = 1/2

therefore A-B = 30. (1)

cos( A+B)= 1/2

and cos60 = 1/2

therefore, A+B = 60 (2)

add(1) and (2) we get,

2A= 90

A = 45

put this in (2) we get,

B= 15°

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