Question

Differentiate the function y = ln |2-x-5x^2|

Answer 1

is the ques correct?

Answer 2

yup

Answer 3

oops

Answer 4

fixed it

Answer 5

...

Answer 6

\[[ln(u)]'=\frac{u'}{u}\]

Answer 7

what are those brackets or ||

Answer 8

because it's not |lnu| it's ln|u|

Answer 9

those are just for grouping; it means that the whole of it is derived and not just the (u) part

Answer 10

okay so show me how

Answer 11

i believe it goes piece wise in the end

Answer 12

or you can use the sqrt(u)^2 trick

Answer 13

please show me