1.

alpha, beta, gamma are the root of x^(3)-2x^(2)-x+2=0. Centroidof triangle with verties alpha, beta, gamma, (beta, gamma, alpha), (gamma, alpha, beta) is

Answer»

`(-(2)/(3), (2)/(3), -(2)/(3))`
`(-(2)/(3), (1)/(3), (2)/(3))`
`((2)/(3), (2)/(3), (2)/(3))`
`((4)/(5), (2)/(3), (2)/(3))`

Answer :c


Discussion

No Comment Found