7.计算下列复数的值:-|||-(1) _(1)=((dfrac {-1+sqrt {3)i}(2))}^6;

已知复数=dfrac (2-2i)(1+sqrt {3)i}，则=dfrac (2-2i)(1+sqrt {3)i}=dfrac (2-2i)(1+sqrt {

1.9 利用复数的三角表示计算下列各式:-|||-(1) (1+i)(1-i) ;-|||-(2) (-2+3i)/(3+2i) ;-|||-(3) ((dfr

计算下列定积分: (12) (int )_(1)^4dfrac (dx)(1+sqrt {x)}; 计算下列定积分: (12) ;

不定积分int dfrac (1)(1+sqrt {1-x)}dx=( ) int dfrac (1)(1+sqrt {1-x)}dx=int dfrac (

【题目】-|||-计算下列定积分:-|||-(12) (int )_(1)^4dfrac (dx)(1+sqrt {x)};

1.1.19 利用复数的三角表达式或指数表达式证明:-|||-(a) ((-1+i))^7=-8(1+i);-|||-(b) ((1+sqrt {3)i)}^-

(6) int dfrac (dx)(1+sqrt {1-{x)^2}} ;

计算下列极限lim _(xarrow 1)dfrac (sqrt [3]{x)-1}(sqrt {x)-1}=______计算下列极限______

1.1 计算下列各式.-|||-(1) (1+i)-(3-2i);-|||-(2) ((a-ib))^3;-|||-(3) dfrac (1)((i-1)(i-

4.9 计算下列定积分:-|||-(6) (int )_(dfrac {3)(4)}^1dfrac (1)(sqrt {1-x)-1}dx.