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The polynomial x^3 - kx^2 + 9x has thre...

The polynomial `x^3 - kx^2 + 9x` has three real zeros if and only if, k satifies

A

`|k|le6`

B

`k=0`

C

`|k| gt 6`

D

`|k| ge 6`

Text Solution

Verified by Experts

The correct Answer is:
D
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