math problems

hi guys.i tried differenciating y=1/(5x+3) using both standard derivation and by first principles and it gave me 2 different answers.can someone explain that: for the first principles derivation i got dy/dx=-5/(5x+3)^2 and by standard derivation i got 1/-25x^2-30x-9.

hi guys.i tried differenciating y=1/(5x+3) using both standard derivation and by first principles and it gave me 2 different answers.can someone explain that: for the first principles derivation i got dy/dx=-5/(5x+3)^2 and by standard derivation i got 1/-25x^2-30x-9.

Wow that sum is hard... Not as hard as your mum got me though!

I do not think this helps him do the question ...

Do you have to do it from first principles?

I do not think this helps him do the question ...

yeah.it's an assignment and our class just got introduced to calculus.what i know is that once i have solved a sum using first principles, i have to use standard derivation to prove that the answer is correct.so, yes.

can someone please provide a solution?

it is against the rules to provide a solution, particularly if it is an assignment/homework.



However I made a similar question to yours and you may find it useful to do your question

thanks for the help but i wanted to know if solving the same sum using standard derivation gives the same result.

thanks for the help but i wanted to know if solving the same sum using standard derivation gives the same result.

thanks for the help but i wanted to know if solving the same sum using standard derivation gives the same result.

hi guys.i tried differenciating y=1/(5x+3) using both standard derivation and by first principles and it gave me 2 different answers.can someone explain that: for the first principles derivation i got dy/dx=-5/(5x+3)^2 and by standard derivation i got 1/-25x^2-30x-9.

It should give the same result.