## Question

###### Lerf(x) = 2x2 + 1Estimate thearea under the 'graph off (x)on the interval [0, 3] using 6 rectangles of equal width and left endpoints: your estimate an overestimate Or an underestimate? Write an expression in sigma notation for 4n estimate of the area under the graph of f (x) on the interval [0, 3] using rectangles of equal width and left endpoints: Using the summation formulas we derived, write the sum YOu came Up with for part (b) in closed form in terms of n. Take the limit of che close

Lerf(x) = 2x2 + 1 Estimate thearea under the 'graph off (x)on the interval [0, 3] using 6 rectangles of equal width and left endpoints: your estimate an overestimate Or an underestimate? Write an expression in sigma notation for 4n estimate of the area under the graph of f (x) on the interval [0, 3] using rectangles of equal width and left endpoints: Using the summation formulas we derived, write the sum YOu came Up with for part (b) in closed form in terms of n. Take the limit of che closed form sum from part (c) This is the exact areal

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