AP EAMCET · Maths · Pair of Lines
The pair of straight lines represented by the equation \(3 d x^2-5 x y+\left(d^2-2\right) y^2=0\). If the lines are perpendicular to each other, for how many values of \(d\) this condition will be satisfied?
- A 0
- B 2
- C 1
- D 3
Answer & Solution
Correct Answer
(B) 2
Step-by-step Solution
Detailed explanation
Given, pair of straight lines is \(3 d x^2-5 x y+\left(d^2-2\right) y^2=0\) Since, lines are perpendicular \(\Rightarrow x^2\) coefficient \(+y^2\) coefficient \(=0\)…
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