Find exact area of the surface obtained by rotating curve

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Reference no: EM131015389

Find the exact length of the curve. x = e^t - t, y = 4e^t/2 , 0 ≤ t ≤ 2.

Find the exact area of the surface obtained by rotating the given curve about the x-axis. x = 2t2 + 1/t, y = 8 - t, 1 ≤ t ≤ 3.

Reference no: EM131015389

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