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- #1

Approximate the area of the region by using a regular partition of 4 sub intervals.

a) using L4 i,e, left hand endpoints

b) using R4 i,e, right hand endpoints

So for the left hand endpoints would I just plug into the function? like for example;

\(\displaystyle (1^2 + 2(1) + (2^2 + 2(2) + (3^2 + 2(3) + (4^2 + 2(4) = L4?\)

and\(\displaystyle

(2^2 + 2(2) + (3^2 + 2(3) + (4^2 + 2(4) + (5^2 + 2(5) = R4?\)

Or am I on the wrong track here?