Home
Class 12
MATHS
Number of imaginary complex numbers sati...

Number of imaginary complex numbers satisfying the equation, `z^2=bar(z)2^(1-|z|)` is

A

`0`

B

`1`

C

`2`

D

`3`

Text Solution

Verified by Experts

The correct Answer is:
C

`(c )` `z^(2)=barz*2^(1-|z|)`
`:.z^(3)=|z|^(2)2^(1-|z|)`…………`(i)`
`implies |z|=2^(1-|z|)` (by taking modulus both sides)
`implies|z|=1`
`impliesz^(3)=1`
`impliesz=1`, `omega`, `omega^(2)`
But `1` is not imaginary
Hence `z=w` or `w^(2)`
Promotional Banner

Topper's Solved these Questions

  • COMPLEX NUMBERS

    CENGAGE PUBLICATION|Exercise Multiple Correct Answer|11 Videos
  • COMPLEX NUMBERS

    CENGAGE PUBLICATION|Exercise Matching Column|1 Videos
  • CIRCLES

    CENGAGE PUBLICATION|Exercise Comprehension Type|8 Videos
  • CONIC SECTIONS

    CENGAGE PUBLICATION|Exercise All Questions|102 Videos

Similar Questions

Explore conceptually related problems

The complex number z satisfying the equation |z-i|=|z+1|=1 is

The complex number z satisfying the question |(i -z)/(i+z)|=1 lies on-

Find the number of complex numbers which satisfies both the equations |z-1-i|=sqrt(2)a n d|z+1+i|=2.

Find the non-zero complex number z satisfying z =i z^2dot

Find the complex number z satisfying R e(z^2) =0,|z|=sqrt(3.)

Let z be a complex number satisfying the equation z^2-(3+i)z+m+2i=0\ ,where m in Rdot . Suppose the equation has a real root. Then find the value of m

The maximum value of |z| when the complex number z satisfies the condition |z+(2)/(z)|=2 is -

The maximum value of absz when the complex number z satisfies the condition abs(z-(2/z) =2 is

Let z be a complex number satisfying |z+16|=4|z+1| . Then

Let z be a complex number satisfying the equation (z^3+3)^2=-16 , then find the value of |z|dot