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The minimum number of equal length subintervals needed to approximate $\int_1^2 xe^x\,dx$ to an accuracy of at least $\frac{1}{3}\times10^{-6}$ using the trapezoidal rule is

1. 1000e
2. 1000
3. 100e
4. 100

reopened | 818 views

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I am not sure of the solution,posting it from source http://www.cse.iitd.ac.in/~mittal/gate/gate_math_2008.html

question 21

It will be highly appreciable if anyone can explain it.

by Loyal (9.9k points)

1
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