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The equation of the bisectors of the ang...

The equation of the bisectors of the angles between the two intersecting lines `(x-3)/(cos theta ) = (y+5)/(sin theta) and (x-3)/(cos theta) = (y+5)/(sin theta)` are` (x-3)/(cos alpha) = (y+5)/(sin alpha) and (x-3)/beta = (y+5)/gamma ,` then

A

`alpha=(theta+phi)/2`

B

`beta =-sin alpha`

C

`gamma = cos alpha`

D

`beta = sin alpha`

Text Solution

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The correct Answer is:
A, B, C, D
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