Q. The number of integral values of $m$ for which the equation, $(1 + m^{2}) x^{2} - 2 (1 + 3 m) x + (1 + 8 m) = 0,$ has no real root, is :

2335 289 JEE MainJEE Main 2018Complex Numbers and Quadratic Equations Report Error

A

2

15%

B

3

30%

C

infinitely many

33%

D

1

22%

Solution:

Correct answer is (b) 3