TS EAMCET · Maths · Pair of Lines
represents a pair of lines. If is the angle between these lines, and the possible values of '' are and then
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
Given, Pair of straight lines equation ax2-4xy-2y2=0 Now angle between them is given by tanθ=2h2-aba+b Now putting the value in formula we get, tanθ=24+2aa-2 Now given cosθ=15⇒tanθ=25-11=24 ⇒24+2aa-2=24 ⇒24+2a=24a-2 ⇒44+2a=24a-22…
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