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If the lines represented by the equation...

If the lines represented by the equation `ax^(2)-bxy-y^(2)=0` make angles `alpha` and `beta` with the X-axis, then `tan(alpha+beta)=`

A

`b/(1+a)`

B

`(-b)/(1+a)`

C

`a/(1+b)`

D

`b/(1-a)`

Text Solution

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The correct Answer is:
B
NA
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