Math Chapter Wise Limit, Continuity And Differentiability Of Function Of One Variable English MCQ PGT 2011 Q.If y x y x e − − = then dy dx is equal to: A() 1 1 logx − + B() 2 1 logx − + C()2 log x 1 log x + DNone of these Show answer Correct answer: ()2 log x 1 log x +