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if 4xy+2x+2fy+3=0 represents a pair of lines then ‘f’=?

if 4xy+2x+2fy+3=0 represents a pair of lines then ‘f’=?
 

Question Image
Grade:11

1 Answers

Riddhish Bhalodia
askIITians Faculty 434 Points
5 years ago
A simple way to do it is to factorize
2x(2y+1) + 3(2fy/3 + 1)
now the factors should match
2f/3 = 2
f=3

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