Question 3 (1 point) What is the related acute angle (,8) to the principal angle (6) shown in the 5 expression: cotg. (Draw the diagram in order to help answer this question.) Question 5 (1 point) When calculating the exact value of 880313, what point on the unit circle would be used? (Draw the diagram in order to help answer this question.) 0 (o, 1) O (1, 0) O (0, 1) O (1, 0) Question 11 (1 point) Match the corresponding trigonometric expressions to form trigonometric identities. cos a cos B - sin a sin / 1. 1 sect 2 tan x 1-tan x 2. sin(-0) cos 2x 3. cos(a + B) cos 4. -2 sinx + 1 V - sin 0 5. tan 2x