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You are given the function f(x) = 4 - x^2. Using four approximating rectangles and left...

You are given the function f(x) = 4 - x^2. Using four approximating rectangles and left endpoints, estimate the area under the graph of f(x) from x=0 to x=2. Estimated area =  Repeat the above calculation using right endpoints. Estimated area =  Your answers should have two digits after the decimal.

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