Question

Values of ‘a’ for which the roots of the equation (a + 1)x² – 3ax + 4a = 0 (a ≠ –1) greater than unity is

a. \(a\in[\frac{-16}7, -1]\)

b. \(a\in(\frac{-16}7, -1)\)

c. \(a\in(\frac{-16}7, -1]\)

d. none of these

Answer 1

Correct option is a. \(a\in[\frac{-16}7, -1]\)