Complex Numbers And Quadratic Equations question 338
If P, Q, R, S are represented by the complex numbers $ 4+i,1+6i,-4+3i,-1-2i $ respectively, then PQRS is a parallelogram [Orissa JEE 2003]
Options:
A) Rectangle
B) Square
C) Rhombus
D) Parallelogram
Show Answer
Answer:
Correct Answer: B
Solution:
$ |PQ|=|QR|=|RS|=|SP| $ and $ \angle PQR=90^{o} $ .
BETA
