2. Questions Bank
  3. JEE Main & Advanced
  4. Mathematics
  5. Pair of Straight Lines

JEE Main & Advanced Mathematics Pair of Straight Lines Question Bank Angle between the pair of straight lines, Condition for parallel and perpendicular lines

  • question_answer
    The straight lines represented by the equation \[9{{x}^{2}}-12xy+4{{y}^{2}}=0\] are

    A)            Coincident                            

    B)            Perpendicular

    C)            Parallel                                   

    D)            Inclined at an angle of\[{{45}^{o}}\]

    Correct Answer: A

    Solution :

               Since \[{{h}^{2}}-ab\]i.e., \[{{(6)}^{2}}-9\times 4=0\]


You need to login to perform this action.
You will be redirected in 3 sec spinner