∫0~1(2-X)dx ∫-1~1(2-X三次方)dx
问题描述:
∫0~1(2-X)dx ∫-1~1(2-X三次方)dx
积分取值范围0~1 ∫0~1(2-X平方)dx=()求过程
积分取值范围-1~1 ∫-1~1(2-X三次方)dx=()求过程
答
∫0~1 (2-x²)dx
=2x-x³/3 |x从0到1
=2-1/3
=5/3
∫-1~1 (2-x³)dx
=2x-(x^4)/4 |x从-1到1
=(2-1/4)-(-2-1/4)
=4