1. Solve the following equation in the interval [0, 27). (a) - sin(20) = 0 (b) tan =1 2. Which of the following represents the following sum? (Circle the correct answer.) 1 - 4 + 9 16 + 25 5 5 (-1)k 5 A. EZZ B ER C. E (-1) 4 5 (-1)k k=0 K = K2 D. E E IM *=0 K2 k=0 K2 k=13 [1/2 Points] DETAILS PREVIOUS ANSWERS SPRECALC7 7.5.017. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHE An equation is given. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal places where appropriate. If there is no solution, enter NO SOLUTION.) cos(30) = 1(b) Find the solutions in the interval [0, 21). 0 =4- [1/2 Points] DETAILS PREVIOUS ANSWERS SPRECALC7 7.5.021. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER An equation is given. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal places where appropriate. If there is no solution, enter NO SOLUTION.) V 3 tan(30) + 1 = 0(b) Find the solutions in the interval [0, 2n). 0 =6. [0/2 Points] DETAILS PREVIOUS ANSWERS SPRECALC7 7.5.042. MY NOTES ASK YOUR TEACHER Use an Addition or Subtraction Formula to simplify the equation. sin(30) cos(0) - cos(30) sin(0) = = X Find all solutions in the interval [0, 21). (Enter your answers as a comma-separated list.) 0 =7. [0/1 Points] DETAILS PREVIOUS ANSWERS SPRECALC7 7.5.043.MI. MY NOTES Use a Double- or Half-Angle Formula to solve the equation in the interval [0, 2x). (Enter your answers as a comma-separated list. ) sin(20) + sin(0) = 0 0 =9. [0/2 Points] DETAILS PREVIOUS ANSWERS SPRECALC7 7.5.039. MY NOTES Use an Addition or Subtraction Formula to simplify the equation. sin(0) cos(30) + cos(0) sin(30) = 0 Find all solutions in the interval [0, 27). (Enter your answers as a comma-separated list. ) 0 =