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## PRACTICE PROBLEM SET 5 Simplify when possible. The answers are in Chapter 23, starting on page 464. 1. Find
f
′
(
x
)
f^{\prime}(x)
f
′
(
x
)
if
f
(
x
)
=
(
4
x
3
−
3
x
2
5
x
7
+
1
)
f(x)=\left(\frac{4 x^{3}-3 x^{2}}{5 x^{7}+1}\right)
f
(
x
)
=
(
5
x
7
+
1
4
x
3
−
3
x
2
)
.
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