given a is equal to 60 degree and 30 degree prove that sin a + b is equal to sin a cos b + cos a sin b
1 answer:
Answer:
A = 60 and B = 30
Now, A + B = 60 + 30 = 90
Also, A – B = 60 – 30 = 30
sin (A + B) = sin 90 = 1
sin A cos B + cos A sin B = sin 60 cos 30 + cos 60 sin 30
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