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Find the equation of the line for which ...

Find the equation of the line for which
`(i)p=3 and alpha=45^(@)` (ii)`p=5 and alpha=135^(@)`
(iii)`p=8 alpha=150^(@)` (iv) `p=3 and alpha=225^(@)`
(v)`p=2 and alpha=300^(@)` (vi)`p=4 and alpha=180^(@)`

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The correct Answer is:
`x-y+5sqrt(2)=0`
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