The Modulus and the Conjugate of a Complex Number

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The Modulus and the Conjugate of a Complex Number: Overview

This topic covers concepts, such as Modulus of a Complex Number, Modulus of Product of Two Complex Numbers, Modulus of Conjugate of a Complex Number & Properties of Conjugate of a Complex Numbers etc.

Important Questions on The Modulus and the Conjugate of a Complex Number

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fx=7x5+3x4+a1x3+a2x2+a3x+1 such that for any z=x+iy where xy0 and x, yRfz¯=fz¯

then the product of a1, a2, a3 is

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If z=x+iy and x2+y2=16, then the range of x-y is

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Find the real part of the complex number 1-2i-3

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If z is a complete number, then z2+z¯2=2 represents

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Define f:CR by f(z)=|z| zC. Then which of the following is false?

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The modulus of eiz, if z=x+iy is a complex number, where x and y are real numbers, is

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The modulus amplitude form of complex number -1-i3 is

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The modulus of the complex number (1-i3)(cosθ+isinθ)(1+i)(cosθ-isinθ) is

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If x+iy=(1+i)(2+i)(3+i), then x2+y2 is equal to

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For any complex number z, which of the following is not true?

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Let z be a complex number such that |z|+z=3+i , (where i=-1 ). Then |z| is equal to:

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The complex number which satisfies the equation z+2 z+1+i=0 is (where i = - 1 )

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If z1 and z2 are two complex numbers such that z1=z2+z1-z2, z1>z2,  then

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For x1,x2,y1,y2R, if 0<x1<x2 , y1=y2 and z1=x1+iy1 ,z2=x2+iy2 and z3=12z1+z2, then z1, z2 and z3 satisfy :