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Let f(x)=ax^2 + bx+c whose roots are a...

Let `f(x)=ax^2 + bx+c` whose roots are `alpha` and `beta` ,` a ne 0` and `triangle=b^2-4ac`. If `alpha + beta , alpha^2 + beta^2 ` and `alpha^3 + beta^3` are in GP then :

A

`triangle ne 0`

B

`btriangle =0`

C

`ctriangle =0`

D

`bc ne 0`

Text Solution

Verified by Experts

The correct Answer is:
C
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