2. If sin A =
i and sin B = , where < A < it and
O<B< , find the values of the following-
(i) sin (A + B)
(ii) cos (A + B)
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Answer:
sin (A+B)=SinA.CosB+CosA.sinB
cos(A+B)=cosA.cosb+sinA.sinB
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