Which of the following are trigonometric identities? Select all that apply. O A. sin 8 tan 8 = cos & O B. cos 8 = - sec 8 O C. sec 8 = csce O D. sin28- cos2 0 = 1 O E. 1+tan2 0 = sec2 8What is a simplified form of the expression sec* x - 1 ? sin x sec x O A. cot x O B. CSC X O C. tan x O D. sec x tan xWhich statements are true? Select all that apply. O A. = cos 8+1 Csc- 2 O B. sin 0 cos 0 = tan 0 O C. csc2 0=1-cot2 g O D. 1+ tan28 = costa O E. sec & csc 8 = tan 8What is a simplified form of the expression sec 8- sec a ? cot2 8 O A. O O B. sec @ - tan & O C. cos e O D. sec 0Which of the following are true statements? Select all that apply. O A. sin 67 = sin 42 cos 25 + cos 420 sin 250 O B. tan 670 = tan 70+ tan 30 1 -tan 70 tan 30 O C. cos 67 = cos 41 cos 26 + sin 410 sin 26 O D. tan 670= tan 23 + tan 440 1- tan 23 tan 440 O E. sin 670 = sin 810 cos140 - sin 810 cos 140Which statement is true? O A. cos $ 2 470 = 1+ cos 94 2 O B. 1+ cos 00 / 14 COS 2 O C. tan 340 = 2 tan 680 1- tan 680 O D. sin = cos - sin 2 12 12\fWhich are simplified forms of the expression tan2 8 cos 20 ? Select all that apply. O A. 2sin20- tan2 8 O B. tan28-2cos2 8 O C. 2sing cos # O D. cos 28 cot 2 8 O E. 2cos2 8- tang\fSUCH] 15 cm Use the image to answer the question. What is the length of the side labeled x cm? 0 A. 10.8 cm 0 B. 13.7 cm 0 C. 9.9 cm 0 D. 20.8cm Use the image to answer the question. Two ramps are placed back to back as shown. What is the length of the ramp labeled x? O A. 16.6 ft. 0 B. 8.8ft. O C. 4.9. O D. 17.2 ft. 10 ft. 13 ft. Use the image to answer the question. Solve the triangle for x. O A. 50.1 O B. 93.8 O C. 43.?\" O D. 862 9ft. Manuel and Peter are standing 12 ft. apart from each other and looking up at a kite that is flying between them. Manuel is flying the kite on a 65 ft. string at an angle of 70 with the ground. How far is Peter from the kite? O A. 61.9 ft. O B. 65.8 ft. O C. 68.1 ft. O D. 99.5 ft.Explain how you would solve a triangle given two sides and the included angle.The equation that models the height above or below equilibrium in inches. in of a spring over time in seconds, t, is I: = -30cos [g1] . At which times will the spring be at a height of 20 in. above equilibrium? Select all that apply. :I A. 1.3 seconds 3 B. 1.8 seconds :I C. 3.2seconds 3 D. 4.35emnds II E. 5.?seconds Which are the solutions to 7 tan? 9-4 tan a = 0, -90 5 9 5 90 ? Select all that apply. C] A. -29.7 C] B. 0.0 Cl C. 29.7\" D D. 45.0 C] E. 60.3 At what x-values do the graphs of the functions y = cos 2x and y = 1-sin x intersect over the interval 0S x x? Select all that apply. O A. IT O B. O C. 0 O D. - Xsin 21 A student solved the equation = 2. El 5 x S x. and found an answer of E Describe the student's error. :05 X