[题目]-|||-18、单选下列积分的效散性说法错误的是(), ()-|||-()-|||-A (int )_(0)^1dfrac (dx)(1-{x)^4} 发散-|||-B (int )_(0)^1dfrac (dx)(xsqrt {1-x)} 发散-|||-C (int )_(0)^1dfrac (dx)(sqrt {1-{x)^2}} 发散-|||-D (int )_(0)^1dfrac (dx)({x)^2sqrt (1-x)} 发散

18、单选下列积分的敛散性说法错误的是 -|||-A (int )_(0)^1dfrac (dx)(1-{x)^4} 发散-|||-B (int )_(0)^1

(int )_(0)^1dfrac (dx)({x)^2sqrt (1-x)} 发散-|||-D (int )_(0)^1dfrac (dx)(xsqrt {1

[题目]计算定积分 (int )_(0)^1dfrac (1)(1+sqrt {x)}dx.

计算定积分(int )_(0)^1dfrac (x)(x+1)sqrt (1-{x)^2}dx.计算定积分.

(int )_(0)^1dfrac (x)(sqrt {1-{x)^2}}dx= [填空1]

计算下列定积分。-|||-(int )_(0)^1dfrac ({x)^4}(1+{x)^2}dx

(int )_(0)^1dfrac (x+2)(sqrt {x+1)}dx=( )(int )_(0)^1dfrac (x+2)(sqrt {x+1)}dx=

(4)若 (int )_(0)^1f(x)dx=agt 0, 则 (int )_(0)^1dfrac (1)(sqrt {x)}f(sqrt (x))dx=()

定积分(int )_(0)^1dfrac (2)({e)^-x+5}dx=_____.定积分_____.

定积分(int )_(0)^4dfrac (dx)(1+sqrt {x)}的值是（ ）(int )_(0)^4dfrac (dx)(1+sqrt {x)}(i