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Mathematics
Problem
Calculate the left‐endpoint Riemann sum with
n
=
4
n=4
n
=
4
subintervals to approximate
∫
1
3
x
2
d
x
\displaystyle \int_{1}^{3} x^{2}\,dx
∫
1
3
x
2
d
x
. a)
10.625
10.625
10.625
b)
6.75
6.75
6.75
c)
13.50
13.50
13.50
d)
8.75
8.75
8.75
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