Hi, i'm using an online evaluation tool, and it's not excepting my answer. There are 2 reasons for this.
1) My answer input is wrong
2) The machine is wrong
Now i've done the question 3 or 4 times now with differing answers only in + & - signs, but input all answers into the tool and it always comes back as wrong.
This is the question
i'm using the quotient rule as i know it which is
and i get this as my answer
So am i right, or am i wrong?