1. Name another pair of polar coordinates that represent point S(5, 120°) with the restriction that -360°360°. A. (5, -240°) B. (5, -120°) C. (5, 330°) D. (5, -30°) Hint 2. Which equation could represent a rose with 5 petals? A. B. C. D. Hint 3. What is the conjugate of –9 – 2i? A. 9 B. 2 – 9i C. 2 + 9i D. –9 + 2i Hint 4. Simplify (2 – 3i) ÷ (1 + i). A. B. C. D. Hint 5. Find the quotient . Express the result in rectangular form. A. -4i B. 4i C. 4 D. -4 Hint 6. The point P with polar coordinates can also be represented in polar coordinates as __________. A. B. C. D. Hint 7. Which equation could represent a lemniscate? A. B. r = 4 cos 4 C. r = 4 sin 2 D. Hint 8. Find the rectangular coordinates of the point R. A. B. C. D. Hint 9. Find the polar coordinates of the point P(8, -2). A. B. C. (10, -4) D. Hint 10. Write the polar equation 7 = r cos (- 2.3) in rectangular form, rounding the coefficients of x and y to the nearest hundredth. A. 0.67x - 0.75y + 7 = 0 B. -0.75x - 0.67y - 7 = 0 C. 0.75x - 0.67y - 7 = 0 D. 0.75x + 0.67y + 7 = 0 Hint 11. Which of the following is the graph of the equation 4 = -r cos ( - 58°)? A. B. C. D. Hint 12. Express the complex number -9 – 4i in polar form. A. B. C. D. Hint 13. Express the number in rectangular form. A. B. C. D. Hint 14. Find the product 3 (cos 2.8 + i sin 2.8) · 5 (cos 0.6 + i sin 0.6). Express the answer in rectangular form, approximating a and b to the nearest hundredth. A. -8.83 + 12.13i B. -0.87 + 7.95i C. -1.63 + 14.91i D. -14.50 - 3.83i Hint 15. Find . A. B. 10i C. 1000i D. Hint 16. Solve the equation x4 - 81 = 0. A. 3, -3, , - B. 3, -3i, , C. 3, -3, 3i, -3i D. 3, 3i, , Hint