1.

Let alpha , beta and gamma be the roots of the equation x^3 - x - 1 = 0 . If P_k = (alpha)^k + (beta)^k + (gamma)^k , k gt= 1 , then which one of the following statements is not true?

Answer»

`P_3 = P_1+P_2 + 1`
`P_2 = P_4`
`P_5 = P_6`
`P_5 = P_3`

SOLUTION :According to given the EQUATION `P_(k+3) = P_(k+1) +P_k`and `P_1 = 0, P_2 = 2, P_3 = 3`


Discussion

No Comment Found

Related InterviewSolutions