Question

1. If sin A + sin B = C sin (A + B)= cos A + cos B = D , then the value of sin(a+b)=
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Answer 1

Answer:

sina cos b + cos a sin b

Step-by-step explanation:

use formula

Answer 2

Step-by-step explanation:

sind & sinB = c. cost cash - - 2 sin p-B) cos(A- B sin paB) = sina ( AB) Frun C é 2 tan (A-B) a tar² A &B Em 2 cos ATB COS (A.B) = D. Dividing fan ( AB) - 28 E 200 2402