Question

if Y is equal to LN X then the value of DY by DX is

Answer 1

HEY mate !! HERE is your answer !!

when y=ln x

then
dy/dx=d ln x/dx=1/x(answer )..

so the correct option is A ..

Hope it helps you.

happy friendship day.

^_^

Answer 2

1/x. Derivative of the logx =1/x