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alpha , beta are the roots of x^2+k...

`alpha , beta ` are the roots of `x^2+kx+2=0` . If ` alpha - beta =1 ` then K=

A

`+-1`

B

`+-2`

C

`+-3`

D

`+-4`

Text Solution

Verified by Experts

The correct Answer is:
C
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