_______.
_______.
(2) (int )_(-2)^1dfrac (dx)({(11+5x))^3} :
计算(int )_(-2)^1dfrac (1)({(7+3x))^3}dx-|||-__时，令(int )_(-2)^1dfrac (1)({(7+3x))^
(int )_(0)^1dfrac (x+2)(sqrt {x+1)}dx=( )(int )_(0)^1dfrac (x+2)(sqrt {x+1)}dx=
(int )_(0)^1dfrac (dx)({x)^2sqrt (1-x)} 发散-|||-D (int )_(0)^1dfrac (dx)(xsqrt {1
(int )_(0)^1dfrac (1)(1+5x)dx
(int )_(dfrac {3)(4)}^1dfrac (dx)(sqrt {1-x)-1}..
定积分(int )_(0)^1dfrac (2)({e)^-x+5}dx=_____.定积分_____.
(int )_(-1)^1dfrac (1+sin x)(1+{x)^2}dx .
(int )_(0)^1dfrac (x)(sqrt {1-{x)^2}}dx= [填空1]
2.计算下列定积分:-|||-(1) (int )_(dfrac {pi )(3)}^pi sin (x+dfrac (pi )(3))dx;-|||-(2)