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Find the angle between the lines represe...

Find the angle between the lines represented by `x^2+2x ysectheta+y^2=0`

A

`4 theta`

B

`2 theta`

C

`theta`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
Let `alpha` be the angle between the lines represented by the given equation. Then , `tanalpha=(2sqrt(sec^2theta-1))/(1+1)`
`rArr tan alpha=tan thetarArr alpha=theta`
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