Question

If one root of equation $4x^2-2x+k-4=0$ is reciprocal of the other. The value of k is:

• A. 8
• B. -4
• C. 4
• D. -8

Answer 1

The correct option is A 8

Explanation : If one root is reciprocal of thers, then the product of roots will be:

$\alpha \times \frac{1}{\alpha }=\frac{(k-4)}{4}$
$k-4=4$
$k=8$