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Which of the following is correct for an...

Which of the following is correct for any two complex numbers `z_(1)` and `z_(2)` ?

A

`|z_(1) z_(2)|=|z_(1)| .|z_(2)|`

B

`arg (z_(1) . z_(2))=arg z_(1) . arg z_(2)`

C

`|z_(1)+z_(2)|=|z_(1)|+|z_(2)|`

D

`|z_(1)+z_(2)| ge |z_(1)|-|z_(2)|`

Text Solution

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The correct Answer is:
A
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