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Let P be a point represented by the comp...

Let P be a point represented by the complex number Z. Rotate OP (O is the origin) through `pi//2` in the anti clockwise direction, the new position of the complex number is represented by

A

1+2 i

B

-1-2 i

C

2+i

D

-1+2 i

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The correct Answer is:
B
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HIMALAYA PUBLICATION-COMPLEX NUMBERS-QUESTION BANK
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  14. If ((1+i)/(1-i))^(m)=1, then the least positive integral value of m is

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  17. If z=1+i then the multiplicative inverse of z^(2) is

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