9. Find the coordinates of the vertex and focus, and the equation of the 6-5 Study the sine and cosine values of 30, 45', and 60. Then give the exact value of each expression in simplest radical form. 10. a. sin 45 11. a. cos 60 12. a. sin 30 13. a. sin 330 14. a. cos d. cot 0 26. a. csc 150 27. a. CSC TT c. cot 41. A circle with center C(2, 4) has radius 13. a. Verify that A(14, 9) and B(7, 16) are points on this circle. b. If M is the midpoint of AB, show that CM L AB. 1. A sector of a circle has radius 6 cm and central angle 0.5 radians. Find its arc length and area. A sector of a circle has arc length 1 1 cm and central angle 2.2 radians. Find its radius and area. icele bac are lon Find an equation of the circle having (2, 5) and (-2, -1) as endpoints of a diameter. 5. Find the coordinates of any points where the line 2x + 3y = 6 and the ellipse 4x2 + 9yz = 36 intersect