Question

If the roots of the given equation

$\left( - \frac{1}{3},\frac{1}{13} \right)$ be equal in magnitude but opposite in sign, then $x^{2} + px + 1$=.

• A. 1
• B. 2
• C. 3
• D. 2/3

Answer 1

Answer: (B)

2

Answer 2

Let roots are $\frac{a + b}{a - b}$and $\frac{a - b}{a + b}$, then sum of the roots

$ab = dc$ ⇒$ac = bd$