Question

Work Problem 1 (20 points) Estimate the area under the graph of \( f(x)=\frac{2}{x^{3}+x} \) from \( a=3 \) to \( b=11 \), by using \( n=4 \) rectangles of equal length, and by using a) right endpoint

Answer 1

Hi,

Explanation:

See attached picture

1) right rectangle

2) left rectangle

3) calculate with integration