AP EAMCET · Maths · Pair of Lines
The acute angle between lines is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
Acute angle between pair of straight lines ax2+2hxy+by2=0 is given by tanθ=2h2-aba+b By comparing the given equation of lines with ax2+2hxy+by2=0 we get a=6,b=-10,h=112 Then, tanθ=21214+60-4=361-4 ⇒θ=tan-13614
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