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Find the equation of the straight lines passing through the origin making an angle `alpha` with the straight line `y=mx+c`.

A

`(y-y_(1)) = tan (theta - alpha) (x - x_(1))`, where `tan theta = m`

B

`(y-y_(1)) = tan (theta + alpha) (x - x_(1))`, where `tan theta = m`

C

`(y-y_(1)) = tan (theta - alpha) (x + x_(1))`, where `tan theta = m`

D

`(y-y_(1)) = tan (theta + alpha) (x + x_(1))`, where `tan theta = m`

Text Solution

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The correct Answer is:
A
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