If the lines represented by the equation...

If the lines represented by the equation `6x^(2)+41xy-7y^(2)=0` make angles
`alpha` and `beta` with X-axis, then `tan alpha.tan beta=`

A

(a) `-6/7`

B

(b) `6/7`

C

(c) `7/6`

D

(d) `-7/6`

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The correct Answer is:

A

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