I REALLY need help on these problems. And I would REALLY appreciate it if you could help me.

Find the approximate slope of the line that makes a 1.2 radian angle with the x-axis Review & Preview Solve for x on the indicated domain. Begin by solving for the function. Recall that if no domain is indicated, the domain is all real numbers. Remember to use either a unit circle or wave graph as a visual reminder. a. 2 sin x - 1=0 b. 2 +2 cos x =0 C. V2 - 2 sin x = 0 d. cos x + 3.8 = 0, [0, 2x] Is there a difference between cos x and ? Explain. COS X Pre-Calculus with Trigonometry