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The lines joining the origin to the point of intersection of `3x^(2)+mxy-4x+1=0 and 2x+y-1=0` are at right angles. Then which of the following is a possible value of m?

A

`lamda=-4`

B

`lamda = 4`

C

`lamda = 7 `

D

no value of `lamda`

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The correct Answer is:
A,B,C
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