Question

if sin (A-B) =1/2 cos (A+B) =1/2 find value of A nd B

Answer 1

Answer:

A = 45

B = 15

Step-by-step explanation:

sin (A-B) =1/2

sin 30 = 1/2

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

cos (A+B) =1/2

cos 60 = 1/2

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

Solving (1) and (2)

A = 45

B = 15

Answer 2

sin (a-b) = 30

Cos (a+b) = 60

A=45

B = 15