Not sure how to differentiate these functions, if you could show the steps for either function that'd be great .

Sorry I also don't know how to format it correctly so bear with me.

Question:

$\displaystyle

p(t) = 70sin((2pi/10)t) +120

$

at t = 6

and

$\displaystyle

P(t) = 3sin(theta -(pi/2))

$

at theta = pi/3

Thanks!