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Two pair of straight lines have the eqau...

Two pair of straight lines have the eqautions `y^2+xy-12x^2=0 and ax^2+2hxy+by^2=0` . One line will be common among them if

A

a=-3(2h+3b)

B

a=8 (h-2b)

C

a=2(b+h)

D

a=-3(b+h)

Text Solution

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The correct Answer is:
A, B
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