Question

Heya guys answer please
Differentiate with respect to 'x' :
$cos( {x}^{2} + 1)$
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Answer 1

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Answer 2

Let the function be defined as f(x) = cos(x^2+1)

So, to differentiate with respect to x

f'(x) = (-sin(x^2+1))*(2x+0)

Therefore, f'(x) = -2x*sin(x^2+1)