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1.9.17 Concavity and the second derivative (A-level only)

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Question 3

y=ln⁡x−3exy = \ln x - 3e^xy=lnx−3ex

a.

Find dydx\displaystyle \frac{dy}{dx}dxdy​

[2]
b.

Find d2ydx2\displaystyle \frac{d^2y}{dx^2}dx2d2y​

[2]

1.9.17 Concavity and the second derivative (A-level only) Questions

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