Question: - La -1 x + 1 (x+2x+2) (a) Let u = x + 2x + 2 (b) Then du = (2x + 2) dx

- La -1 x + 1 (x+2x+2) (a) Let u = x

- La -1 x + 1 (x+2x+2) (a) Let u = x + 2x + 2 (b) Then du = (2x + 2) dx du = 2(x + 1) dr or (c) If z = -1, then u= (-1) + 2(-1) +2=1 (d) If z = 1, then u = (1) + 2(1) + 2 = 5 (e) Now substitute dr /2 du = (x + 1) dr

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