hi, sorry , let me know if this is better.Would you please resend with the picture in a readable orientation.
The work so far is good, except that again you wrote f(x) for f'(x). They are not the same thing!hi, sorry , let me know if this is better.
I did give the books answer in my first message, but i will upload it in this reply. ok so i see what u wrote but what confuses me is where did u learn this rule from?[MATH]sin^2(x) + cos^2(x) = 1.[/MATH] ?Yes, it is much better. Thank you.
Couple of points.
It is a formal error to define f(x) as a fraction and as the fraction's numerator or denominator. A quick glance did not reveal to me any mistake arising from that here, but it is likely to lead to mistakes.
Try [MATH]f(x) = \dfrac{g(x)}{h(x)}.[/MATH]
You seem to want us to compare the book's answer to yours, but you have not told us what the book's answer is.
I suggest you do the squaring and remember that
[MATH]sin^2(x) + cos^2(x) = 1.[/MATH]
ok, ill give it a try . lets seeThe work so far is good, except that again you wrote f(x) for f'(x). They are not the same thing!
The answer you gave might be accepted by a teacher, but to get the book's answer, you need to simplify. Expand each square in the numerator, and cancel or combine many terms. Give it a try, and let us see what you get.
Actually, I should have written [MATH]sin^2(x) + cos^2(x) \equiv 1.[/MATH]