Find the equation of the straight line on which the length of the perpendicular from the origin is `4` units and the line makes an angle of `120^0` with positive direction of `x-a xi sdot`

Explanation

Let line AB makes `120^o` with x axis.


Such that,

`/_MAO = (180 – 120)^0 = 60^0`

And,
`/_MOA = 180 – (90 + 60) = 30^0`


So `theta = 30`


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