Question

Need help understand a definite integral using the limit of sums

Answer 1

\[\int\limits_{3}^{7}\left( 4x+6 \right)dx\]

Answer 2

I know how to do this problem but I am being ask to do it with summations and the limit of sums

Answer 3

\[ \lim_{n \rightarrow \infty} \sum_{n=1}^{\infty}f \left( x _{i} \right)\Delta x\]

Answer 4

\[\lim_{n \rightarrow \infty}\sum_{i=1}^{n} \left[ 4\left( 3+\frac{4i}{n} \right)+6 \right]\frac{4}{n}\]

Answer 5

I do not understand the above statement