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1.9.17 Concavity and the second derivative (A-level only)
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f(x)=4ex+lnxf(x) = 4e^x + \ln x
f
(
x
)
=
4
e
x
+
ln
x
a.
Find
f′(x)f'(x)
f
′
(
x
)
[2]
Write your answer here...
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3
Grade answer
b.
Find
f′′(x)f''(x)
f
′′
(
x
)
[2]
Write your answer here...
Markscheme
Ask Genie
3
Grade answer
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1.9.17 Concavity and the second derivative (A-level only) Questions
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1.9.17 Concavity and the second derivative (A-level only)
