Math Chapter Wise Conic Section English MCQ Haryana PGT 2018 UKPSC GIC 2018 Q.The line ℓ = Acosθ + Bsinθ r will touch the conic ℓ = 1+ ecosθ, r if: A() 2 2 A e B 1 + + = B() 2 2 A e B 1 − + = CA e B 0 + + = DA e B 0 − − = Show answer Correct answer: () 2 2 A e B 1 − + =