5. Find the interval of convergence of ). A) 0 B) 0 C) (0,00) 6. Which of the following is an equation for the line tangent to the curve z = sin 30 cos 0, y = sin 30 sin at 0 = x/3? A) y = 3x B) y = 3r-z3 C) y = r D) (-0,00) D) y=-x