TS EAMCET · Maths · Pair of Lines
The equation represents
- A two perpendicular lines if
- B two parallel lines if satisfies
- C two parallel lines if a satisfies
- D two perpendicular lines if
Answer & Solution
Correct Answer
(D) two perpendicular lines if
Step-by-step Solution
Detailed explanation
Given equation is 3ax2-16xy-a2-10y2=0 ...1 Comparing with Ax2+2Hxy+by2=0, we get A=3a, 2H=-16, B=-a2-10 If equation 1 represents pair of parallel lines then H2=AB ⇒ -82=3a-a2-10 ⇒ 3a3-30a+64=0 ...2 Also,…
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