Question
Question: Roots of a cubic equation over real numbers forms a triangle in argand plane. This triangle cannot b...
Roots of a cubic equation over real numbers forms a triangle in argand plane. This triangle cannot be-
A
Equilateral
B
Isosceles
C
Right angled
D
Scalene
Answer
Scalene
Explanation
Solution
Sol. According to given condition two roots will be imaginary and conjugate to each other while one will be real. Hence triangle cannot be scalene.
