1.

Combined equation of pair of lines passing through origin and inclined at 30^(@) and 60^(@) respectively with x-axis is

Answer»

`SQRT(3)y^(2)-X^(2)=0`
`y^(2)-sqrt(3)x^(2)=0`
`sqrt(3)y^(2)+4xy- sqrt(3)x^(2)=0`
`sqrt(3)y^(2)-4xy+sqrt(3)x^(2)=0`

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