Chapter 3.03
5
10

QA: differentiate
i) (sin x)^2 (also written as sin^2(x) )
ii) (cos x)^2
iii) (sin x)^2 + (cos x)^2
iv) (sin x)/x
(hint: use the product or quotient rule)

22
28
35 WEP
36
37
38
39
53ab WEP (skip c)
55 WEP

QB: It is important to learn "the derivative of sine is cosine" and
"the derivative of cosine is -sin" by heart. But here's another way to think
of it:
i) The derivative of sin(x) is sin(x-a), where "a" is what value?
ii) The derivative of cos(x) is cos(x-b), where "b" is what value?
iii) What do you notice about how "a" and "b" relate to each other?
iv) You could say that taking the derivative of sine or cosine shifts the
_______ by __________.

This assignment seems really short compared to many of our other assignments.
That is because most of the fun we can have with trig derivatives involves
changing the frequency, using sin(a*x) rather than sin(x), for example,
and we won't see how to do that derivative until Chapter 3.04.