Question

The value of m for which the equation

$na_{n}x^{n - 1} + (n - 1)a_{n - 1}x^{n - 2} + .... + a_{1} = 0$has roots equal in magnitude but opposite in sign is.

• A. $\alpha$
• B. 0
• C. $\alpha$
• D. $\alpha$

Answer 1

Answer: (B)

0

Answer 2

Obviously, roots will be equal in magnitude but opposite in sign if coefficient of $\frac{2}{3}$.

But the equation is $- \frac{2}{3}$

Hence the result.