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What is the area under the curve y = x3 + x from x = 1 to x = 2?
D.h(t)= 2/3t5/2+ 1/4t3/2+t+C
(1} {2} 3 a 1 2Area under the curve =J- {x3 + xjdx fit) = t: + it: + 11x4 12 2 ME) = [wit] {it= _ + _4- 2 1 E 1 l24 22 14 12 -'- h{t:] = [{t2 + E {:2 + I) [it= — + —————2 5 1...