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`        If Z1 and Z2 are two complex nos. such that Z1+Z2i=Z2 THEN origin, Z1 and Z2 r the vertices of a___________________ TRIANGLE?`
7 years ago

mycroft holmes
271 Points
```										The lengths of the three sides of the triangle are

We see that

Also,

This also tells us that

Hence the triangle is a right angled isoceles triangle
```
7 years ago
30 Points
```										Dear Prashant,Solution:- z1 + z2 i = z2
or, z2 - z1  = i z2
or, (z2 - z1) / (z2 - 0)  = i ['0' is written to represent origin]
or, (z2 - z1) / (z2 - 0)  = e(i∏/2) [|z2 - z1| / |z2 - 0|]; where,|z2 - z1| = |z2  - 0| and
therefore,[|z2 - z1|/|z2  - 0|] =1

Hence, origin, z1 and z2 are the vertices of isosceles right angled triangle, having right angle between (z2  - z1) and (z2  - origin) sides.
Please feel free to post as many doubts on our discussion forum as you can. If you find any questionDifficult to understand - post it here and we will get you the answer and detailed solution very quickly. We are all IITians and here to help you in your IIT JEE preparation.All the best Prashant!!!Regards,Askiitians ExpertsPriyansh Bajaj
```
7 years ago
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