Use the Midpoint Rule to approximate
∫
−
2.5
4.5
x
3
d
x
\displaystyle {\int_{{-{2.5}}}^{{{4.5}}}}{x}^{{3}}{\left.{d}{x}\right.}
∫
−
2.5
4.5
x
3
d
x
with
n
=
7
\displaystyle {n}={7}
n
=
7
.
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\displaystyle
Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity