Instead of splitting the fraction apart, go back to this step:
Multiple both top and bottom by which will rationalize the numerator, giving:
The question:
Find the derivative of
My attempt:
Using quotient rule:
I'm not sure what to do from here (or whether this is even remotely correct). I know the answer is supposed to be:
Any assistance would be greatly appreciated!
Ummm... This is quite discouraging. You should not be forgetting algebra or the addition of fractions. These things should be fixed in your head by the time you get to calculus.
You have in the second term.
1) Make it look like that, and
2) Make the denominator of the first term the same and add.
I am tempted to make you do algebra drills for a week after seeing this. You MUST get up to speed. Calculus is far more difficult if you are struggling with algebra.
I have great difficulty with math, and I'm really trying hard to set things right. If you feel that I should be doing algebra drills, then I'll do so. If you could be so kind as to direct me to where I could find questions (with solutions) to fulfil this, I'd be grateful.