Identify every quantity that evaluates to 1. Each correct selection adds a point to your score. Each incorrect selection deducts a point from your score. You cannot get a negative score. De sin 6x 1 1 O+ 1 csc( 13x ) cos 90" + cos 91" + . . . + cos 269 + cos 270 sin 0' + sin 10 + . . . + sin 179 + sin 180 cos (eln 1) Question 8 3 pts If f (x) = e" sin x , then how many zeros does f have on the interval [0, 27) ? 04 0 1 0 3 0 5