MCQ
यदि $(x+y)=\sin (x+y)$ तो $\frac{d y}{d x}=?$
  • -1
  • B
    1
  • C
    $\frac{1-\cos (x+y)}{\cos ^2(x+y)}$
  • D
    इनमें से कोई नहीं

Answer

Correct option: A.
-1
A

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