1. Which of the following are trigonometric identities? Select all that apply. (3 points) Ocos 8 = sin2 8-1 O sin 8 = 1 csc & O sec 8 = cot a O cot 8 = cos & sin a O1+cot2 0 = csc2 0 2. What is a simplified form of the expression 1-cos x ? (1 point) cos xtan x Ocsc x Osin x Ocot x cos x sin x 3. Which statements are true? Select all that apply. (2 points) O sin 8 = tan 8 sec & Osin 0 cos 0 = cot 0 Ol+cot2 8=. 1 sina -=1+cot28 O cot2 8 = 1- csc2 8SECS 7 (Ipoint) 4' What is a simplied form of the expression sec3 8 2 E} . cot sec 5 tana cos 6 sec 6 5. Which of the following are true statements? Select all that apply. (2 points) cos 93 = cos 13 cos 80 + sin 13 sin 80 tan 64+tan29 ltanf'l'jtan 29 sin 93 = sin 54 cos 39 + cos 54 sin 39 tan 95+tan 2 1 tan 95tan2 sin93 = sin1|2|5c0512 sin105c0512 tan 93: tan 93: 6. IfsinA = 0.29, cos A = 0.96, sin B = 0.42, and cos B = 0.91, what is sinlijl+BjI ? (I paging 0.67 1.00 |I|.14 0.71