Home
Class 11
MATHS
If f(z) = (7-z)/( 1-z^(2)), where z =1+2...

If `f(z) = (7-z)/( 1-z^(2))`, where `z =1+2i`, then `|f (z) |` is

A

`(|z|)/2`

B

`|z|`

C

`2|z|`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

if z_(1) = 3i and z_(2) =1 + 2i , then find z_(1)z_(2) -z_(1)

If z_(1) = 4 -I and z_(2) = - 3 + 7i then find (i) z_(1) +z_(2) (ii) z_(1) -z_(2)

If |z - 1| = |z + 1| = |z - 2i|, then value of |z| is

If Z_(1)=2 + 3i and z_(2) = -1 + 2i then find (i) z_(1) +z_(2) (ii) z_(1) -z_(2) (iii) z_(1).z_(2) (iv) z_(1)/z_(2)

If |z-2-i|=|z|sin((pi)/(4)-arg z)|, where i=sqrt(-1) ,then locus of z, is

If z_(1)=iz_(2) and z_(1)-z_(3)=i(z_(3)-z_(2)), then prove that |z_(3)|=sqrt(2)|z_(1)|