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If z1,z2 are two complex numbers such th...

If `z_1,z_2` are two complex numbers such that `Im(z_1+z_2)=0,Im(z_1z_2)=0`, then:

A

`z_(1)=-z_(2)`

B

`z_(1)=z_(2)`

C

`z_(1)=barz_(2)`

D

`z_(1)=-barz_(2)`

Text Solution

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The correct Answer is:
c
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OBJECTIVE RD SHARMA-COMPLEX NUMBERS -Exercise
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  18. The product of all values of (cosalpha+isinalpha)^(3//5) is

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  19. If C^(2)+S^(2)=1, then (1+C+iS)/(1+C-iS) is equal to

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