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If lines a^(2)x^(2)+bcy^(2)=a(b+c)xy are...

If lines `a^(2)x^(2)+bcy^(2)=a(b+c)xy` are mutually perpendicular then

A

(a) `c^(2)+ab=0`

B

(b) `b^(2)+ca=0`

C

(c) `a^(2)+bc=0`

D

(d) `a^(2)+b^(2)+c^(2)=0`

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The correct Answer is:
C
NA
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