Question

Differentiate the following:

Answer 1

\[\ln (xy-4x)=\ln (\ln (x))\]

Answer 2

implicitly with respect to y?

Answer 3

i presume

Answer 4

I know , but how?

Answer 5

its impossible to do a differentiation frm my android phone

Answer 6

well first you can eliminate the outside ln

Answer 7

because if
ln (A ) = ln (B) ----> A = B