dfrac (pi )(3)B . dfrac (pi )(3)C . dfrac (pi )(3)D . dfrac (pi )(3)

[ 单选题 ] 复数 1 + i 对应的向量按逆时针方向旋转且长度不变，对应的复数为（）

A .

B .

C .

D .

参考答案与解析：

相关试题

(B) pi +dfrac (4)(3) (C) pi +2 . (D) pi +dfrac (8)(3): (B) pi +dfrac (4)(3) (C) pi +2 . (D) pi +dfrac (8)(3)

查看答案

当theta =dfrac (pi )(3)时，theta =dfrac (pi )(3)______，theta =dfrac (pi )(3)______，theta =dfrac (pi )(3: 当theta =dfrac (pi )(3)时，theta =dfrac (pi )(3)______，theta =dfrac (pi )(3)______，

查看答案

当 theta =dfrac (pi )(3) 时，theta =dfrac (pi )(3)________ ，theta =dfrac (pi )(3)________， theta =dfrac: 当 theta =dfrac (pi )(3) 时，theta =dfrac (pi )(3)________ ，theta =dfrac (pi )(3)__

查看答案

3.要使函数φ(x )= ,dfrac {pi )(2)] (B)[π,2π] (C) [ 0,dfrac (pi )(2)] (D) [ dfrac (pi )(2),pi ]: 3.要使函数φ(x )= ,dfrac {pi )(2)] (B)[π,2π] (C) [ 0,dfrac (pi )(2)] (D) [ dfrac

查看答案

(B) dfrac (pi )(3) (C) π/6, (D) dfrac (pi )(2)A、AB、BC、CD、D: (B) dfrac (pi )(3) (C) π/6, (D) dfrac (pi )(2)A、AB、BC、CD、DA、AB、BC、CD、D

查看答案

dfrac (2pi )(sqrt {3)} D. dfrac (pi )(6): dfrac (2pi )(sqrt {3)} D. dfrac (pi )(6)

查看答案

dfrac (2pi )(sqrt {3)}-|||-D. dfrac (pi )(6): dfrac (2pi )(sqrt {3)}-|||-D. dfrac (pi )(6)

查看答案

A、 dfrac (pi )(6) B、 dfrac (2pi )(3) C、 dfrac (4pi )(3) D、 dfrac (pi )(3)-|||-2、一简谐振动曲线如图所示,则该振动的初相为: A、 dfrac (pi )(6) B、 dfrac (2pi )(3) C、 dfrac (4pi )(3) D、 dfrac (pi )(3)-|||-2、

查看答案

( (int )_(dfrac {pi )(4)}^dfrac (pi {3)}dfrac (x)({sin )^2x}dx ;: ( (int )_(dfrac {pi )(4)}^dfrac (pi {3)}dfrac (x)({sin )^2x}dx ;

查看答案

dfrac ({mu )_(0)I}(pi R)(dfrac (1)(2)+dfrac (pi )(6))-|||-dfrac ({mu )_(0)I}(pi R)(1-dfrac (sqrt {3): dfrac ({mu )_(0)I}(pi R)(dfrac (1)(2)+dfrac (pi )(6))-|||-dfrac ({mu )_(0)I}(pi

查看答案