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Find the equation a line passing through (2,-3) and inclined at an angle of `15^0` with the positive direction of x-axis.

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`theta = 15^o`
` m= tantheta`
`m=tan15^o`
` (sqrt3-1)/(sqrt3+1)`
` y+3 = ((sqrt3-1)/(sqrt3+1)) (x-2)` ...
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