Question

Find out the value of m if roots of the equation x² +2mx +1 = 0 are equal in magnitude and opposite in sign.
A 1
B. -1
C 0
D None of these​

Answer 1

Answer:

Since roots are equal in magnitude and opposite in sign.

Let the roots be a and - a.

Sum of the roots = 0

$- \frac{2m}{1} = 0 \\ m = 0$

Option C is correct.

Answer 2

Answer:

above answer is definitely correct