Question

|z1+z2|=|z1|+||z2|, then prove that arg(z1)-arg(z2)

Answer 1

$\mathfrak{\huge{\orange{\underline{\underline{Answer :}}}}}$

If |z1+z2| = |z1-z2| then we can say that the length of diagonals of the parallelogram is equal hence the parallelogram is a rectangle so angle between z1 and z2 is 90 degree.

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Answer 2

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