please help me with the circled questions

Find the real solutions, if any, of the equation 3x2 + 1 = 4x. (e) y = er (f) y = Inx 2. Find an equation for the circle with center at the point (g) y = sin x (h) y = cos x (-5, 1) and radius 3. Graph this circle. (i) y = tan x 3. 9. Solve the triangle for which side a is 20, side c is 15, and Determine the domain of the function angle C is 40. f(x) = Vx2 - 3x -4 10. In the complex number system, solve the equation 3x5 - 10x4 + 21x3 - 42x2 + 36x - 8= 0 4. Graph the function: y = 3 sin (x) 5. Graph the function: y = -2 cos (2x - 17 ) 11. Analyze the graph of the rational function 6. If tan 8 = -2 and 2 37 0. 8. Graph each the following functions: (a y = x (b) y =x2 (e) Solve g (x) 0. (f) Graph y = f(x). (c) y = Vx (d) y=x (g) Graph y = g(x)