The equation of a line in parametric for...

The equation of a line in parametric form is given by:

A

`(x-x_(1))r cos theta=(y-y_(1))sin theta`

B

`((x-x_(1)))/(costheta)=((y-y_(1)))/(sin theta)=r`

C

`(x_(1)-x_(1))costheta=(y-y_(1))sin theta=r`

D

None of these

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The correct Answer is:

B

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