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प्रश्न
What is the derivative of \[\cos(f(x))\]?
पर्याय
\[-\sin(f(x))\cdot f'(x)\]
\[-\cos(f(x))\cdot f'(x)\]
\[\cos(f(x))\cdot f'(x)\]
\[\sin(f(x))\cdot f'(x)\]
MCQ
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उत्तर
The derivative of the outer function \[\cos\] is \[-\sin\]. The factor \[f'(x)\] is included because the argument is \[f(x)\].
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