GATE | GATE-CS-2016 (Set 2) | Question 5

In a quadratic function, the value of the product of the roots (α, β) is 4. Find the value of

(A) A
(B) B
(C) C
(D) D

Answer: (B)
Explanation:
(α^n + β^n)/ (1/α^n +1/β^n)

(α^n + β^n)/ (β^n + α^n )*(α^n * β^n)

(α^n * β^n)

αβ^n

4^n

This explanation has been contributed by Dharmesh Singh.
Quiz of this Question