3 2 1 0 -1 -2 -3 4 f(x) 8 12 32 [.", 16 20 24 28 32 (a) Estimate (by counting the squares) the total shaded area in the figure above. Total shaded area is approximately i eTextbook and Media (b) Use the figure above to estimate f(x) dx = i 8 32 1.³². f(x) dx.

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