Hi. It's been some time since I've done any trig work. BTW, I'm sorry to doublepost in the calc forum, meant to post here.
Could anyone guide me through these particular problems?
I need the derivatives of the following:
1. (2 sin x)/(1+cos x)
2. (5 tan x)/(x)
4. (tan x - 3)/(sec x)
Also, can anyone briefly tell me what the following are equal to?
And then, how to use them in conjunction with each other.