求下列函数的积分~

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求下列函数的积分~
求下列函数的积分~

求下列函数的积分~
∫(4,1)x½dx=∫(4,1)(2/3)d(x^(3/2))=(2/3)x^(3/2)|(4,1)=(2/3)×4^(3/2)-(2/3)×1^(3/2)=16/3-2/3=14/3;

x^(1/2)的原函数是 2/3·x^(3/2)
积分=2/3·4^(3/2)-2/3·1^(3/2)
=4/3·根号下3-2/3

(2/3)x^(3/2)的导数是√x,所以(2/3)4^(3/2)-(2/3)1^(3/2)=