Grade 11Algebra

Please answer it in detail formate.

Please answer it as soon as possible.
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Rahul Kumar

7 Years agoGrade 11

7 Years ago

using concept of rotation

$z3-z2/mod(z3-z2)=i(z1-z2)/mod(z1-z2)$

as it is isoceles triangle implies mod(z3-z2)=mod(z1-z2) (since mod() signifies distance

we get

$z3-z2=i(z1-z2)$

now squaring both sides we get

$z_{3}^{2}+z_{2}^{2}-2z_{2}z_{3}=(-1)(z_{1}^{2}+z_{2}^{2}+-2z_{2}z_{1})$

arrange it and we get the answer

hope this will help

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