Math Chapter Wise Tangent, Normal, Increasing, Decreasing And Maxima/Minima Of A Function Of One Variable English MCQ TGT 2011 Q.The normal to the given curve is parallel to x- axis if Ady 0 dx = Bdy 1 dx = Cdx 0 dy = Ddx 1 dy = Show answer Correct answer: dx 0 dy =