Question

Approximate the area under the function between a and b using a right-hand sum with the given number of intervals

f(x)=x^3
a=0
b=6
3 intervals

Answer 1

Split up the interval [0, 3] into 3 equally spaced subintervals of length . So we have the partition

[0, 1] U [1, 2] U [2, 3]

The left endpoint of the -th subinterval is

where .

Explanation: