Question: Let f ( x ) = 7 + 4 x 2 . ( a ) Estimate the area under the graph of f , the

Let f(x)=7+4x2.
(a) Estimate the area under the graph of f, the x-axis, and the lines x=-1 and x=2 using three rectangles and a right endpoints.
R3=
Improve your estimate by using six rectangles.
R6=
Sketch the curve and the approximating rectangles for R3.
q,
Let f ( x ) = 7 + 4 x 2 . ( a ) Estimate the area

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