Math Chapter Wise Statics And Dynamics English MCQ PGT 2000 Q.The eqn of the curve for which the polar sub tangent is constant is: Ar(a+θ)= 0 Brθ+c = 0 Cr2 +aθ=0 Dr(θ+c) +a = 0 Show answer Correct answer: r(θ+c) +a = 0