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Let z1=a+i b and z2=c+i d are two comple...

Let `z_1=a+i b` and `z_2=c+i d` are two complex number such that `|z_1|=r` and `R e(z_1z_2)=0` . If `w_1=a+i c` and `w_2=b+i d ,` then `|w_2|=r` (b) `|w_2|=r` `R e(w_1w_2)=0` (d) `I m(w_1w_2)=0`

A

`lm(w_1 barw_2)=0`

B

`lm ( barw_1w_2)=0`

C

`lm(((z_1+z_2)(z_2+z_3)(z_3+z_1))/(z_1.z_2.z_3))=0`

D

Re `(w_1/w_2)=0`

Text Solution

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The correct Answer is:
A, B, C
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