Teaching UP B.Ed (Paper 1 & 2) Mock Test 2025 Mathematics Differential Calculus Second Order Derivatives

If f(x) = e^{cos x}, then find the f"(x)?

1

e^{cos x}(sin²x - cos x)

2

e^cosx.sin x (sin x - 1)

3

e^cosx.cos x (cos x - 1)

4

e^cosx.sin x (cos x + 1)

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