MCQ
यदि $A + B + C =\frac{\pi}{2}$ हो, तो $\sin ( A + B )$ का मान है-
  • A
    $\sin C$
  • $\cos C$
  • C
    $-\sin C$
  • D
    $-\cos C$

Answer

Correct option: B.
$\cos C$
(B) $\cos C$

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