STRAIGHT LINES

Try this one on pair of straight lines.
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9 Replies
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@Apu
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Priyam Alok
Priyam Alok5mo ago
What did you do
itsav23
itsav23OP5mo ago
Used the condition for a pair of straight lines(D=0) and after substitution got the equation. But uske baad I am not sure what to do next.
Slembash
Slembash5mo ago
then check the inequalities h^2 >= ab , g^2 >=ac ,, f^2>=bc i think solving any 1 ineuality gives u the answer, but for now check all 3, to know if it makes a difference or not well this inequality works ezily if no.s were thr, but with variables even i m confused how to proceed
itsav23
itsav23OP5mo ago
nope do inequalities would be a>= p and a>=q but ans is (-♾️,p] U [q,♾️)
Slembash
Slembash5mo ago
well this answer comes if u put condition on D of the quadratic formed after solving D of straight lines
itsav23
itsav23OP5mo ago
yep...solved it. Thanks +solved @Slembash
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