AP EAMCET · Maths · Pair of Lines
If \(a x^2+6 x y+b y^2-10 x+10 y-6=0\) represents a pair of perpendicular lines, then the values of \(|a|\) equals
- A 6
- B 4
- C 2
- D 3
Answer & Solution
Correct Answer
(D) 3
Step-by-step Solution
Detailed explanation
Given pair of perpendicular lines are given as, \[ a x^2+6 x y+b y^2-10 x+10 y-6=0 \] General equation is given as, \[ a x^2+2 h x y+b y^2+2 g x+2 f y+c=0 \] Compare Eqs. (i) and (ii), we obtain…
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