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The straight lines joining the origin to...

The straight lines joining the origin to the points of intersection of the line `2x+y=1` and curve `3x^(2)+4xy-4x+1=0` include an angle

A

`pi/3`

B

`pi/2`

C

`tan ^(-1)((l^(2) -m^(2))/(l ^(2) +m^(2)))`

D

`tan ^(-1)((2lm)/(l^(2) +m^(2)))`

Text Solution

Verified by Experts

The correct Answer is:
B
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