Question Bank - Mathematics

Here's the question bank on all the mathematics topics.

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In polar representation of a complex number (2, ?) lies on

A.
x  - axis
B.
y- axis
C.
z “ axis
D.
any axis

Solution:

Explanation:To convert polar representation (r, ?) into argand plane (x, y) substitute x = r cos ? and y = r sin ?.x = 2 cos(?) = -2 and y = 2 sin (?) = 0Argand plane representation is (-2, 0).Since imaginary part is zero, so it lies on real axis i.e x- axis.

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