AP EAPCET 20-Aug-2021 Shift 2 Paper

Section: Mathematics

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Question : 10 of 160

Marks: +1, -0

If |z1+z2|2=|z1|2+|z2|2, where z1 and z2 are two complex numbers, then

z1
z2
is purely real
z1
z2
is purely imaginary
arg(
z1
z2
)=
π
4
|
z1
z2
|=1

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