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If the equation a x^(2)+5 x y-6 y^(2)-10...

If the equation `a x^(2)+5 x y-6 y^(2)-10 x+11 y+c=0`, represents two perpendicular lines then `c=`

A

6

B

-6

C

4

D

-4

Text Solution

Verified by Experts

The correct Answer is:
D
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HIMALAYA PUBLICATION-Pair Of Lines-QUESTION BANK
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