7. Which is the exact value of cos 105? (1 point) JEN? f 15 f 2 8. Which statement is true? (1 point) 3:332 47'": =1+ [:03 94 4 2 tan 34D: 2""? 1tan 53 Evaluate cos $ 2 (1 point) 12 O 2+1/3 4 NOW O 4 10. Which are simplified forms of the expression cot S cos 20? Select all that apply. (2 points) 2cose sin & cos 28 tana 01-tan28 Ocot2 8-2cos2 8 Ocsc2 8-2tan28 1 1. What is a possible value of sin 0 when cos 20 = 0.21? (1 point) 0 0.32 00.37 10.63 00.68