Hello, i need help in refreshing of memory with these 4 different types of equations. It's been about a year since i've taken trig and school just started calculus class today and i am lost.

Here is 1 example of each section that i need help with:

Find exact value of:

Evaluate each for 0<0<2(pi):

Find the domain and range:

The other one is a word problem, where as again, i have no clue where to start.

You are given the following vertices of [TRIANGLE]ABC, A(-1,-1), B(3,5), and C (5, -3). State the process to find point of intersection of the median from C to AB and the median form B to AC.

I am pretty stressed right now considering these 20 problems are gonna kill me (Angry), any help would be greatly appreciated