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Find the equation of a line making an an...

Find the equation of a line making an angle of `150^0\ ` with the x-axis and cutting off an intercept 2 from yaxis.

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Equation of any line is given by `y=mx+c`
Where `m=tantheta`, `theta` is the angle made by x axis
`m=tan 150= tan(180-30) `
`= -tan30`
...
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