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Problem
Problem
y
=
1
−
x
3
x
y = \frac{1-x^3}{x}
y
=
x
1
−
x
3
Work out the value of
x
x
x
for which
d
2
y
d
x
2
=
14
\frac{d^2y}{dx^2} = 14
d
x
2
d
2
y
=
14
.
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