Friday
October 31, 2014

Homework Help: Math: Calculus

Posted by REALLY NEED HELP!!!! on Friday, November 12, 2010 at 6:59pm.

Estimate the area under the graph of
f(x)=3x^3+5
from x=-1 to x=4, first using 5 approximating rectangles and right endpoints, and then improving your estimate using 10 approximating rectangles and right endpoints.

I'm having problem with using the midpoint to find the area. With 5 rectangle I have 210.625 but I can't figure out how to do the 10 rectangle.

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