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Mathematics
Mathematics
Problem
For
x
>
0
x>0
x
>
0
, let
W
(
x
)
=
∫
x
2
x
(
t
3
−
4
t
)
d
t
.
W(x)=\int_{x^{2}}^{\sqrt{x}} \bigl(t^{3}-4t\bigr)\,dt.
W
(
x
)
=
∫
x
2
x
(
t
3
−
4
t
)
d
t
.
Compute
W
′
(
x
)
W'(x)
W
′
(
x
)
.
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