Let za n dw be two non-zero complex numb...

Let `za n dw` be two non-zero complex number such that `|z|=|w|` and `a r g(z)+a r g(w)=pi` , then `z` equals. `w` (b) `-w` (c) ` w ` (d) `- w `

`barw`

`-barw`

`w`

`-w`

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