Math Chapter Wise Limit, Continuity And Differentiability Of Function Of One Variable English MCQ PGT 2011 Q.If y = log x then n d y dx = is equal to: A() () n 1 n 1! x − − B() () n 1 n 1 n 1! x − − − C() n 1 n 1 n! x − D() () n 1 1 n 1! x − + − − Show answer Correct answer: () () n 1 n 1 n 1! x − − −