TS EAMCET · Maths · Pair of Lines
The product of the length of perpendiculars from origin to the pair of lines is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
Given pair of lines is x2+3y2+4xy-4x-10y+3=0 Comparing the above equation with ax2+by2+2hxy+2gx+2fy+c=0, we get a=1,b=3,h=2,g=-2,f=-5,c=3 As, Product of perpendicular from origin to the pair of lines =ca-b2+2h2 =31-32+2.22 =320
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