D Question 7 12.5 pts Suppose cos 30 = -1, then which of the below is/are true? There may be more than one correct answer. 0 0 = 1 + 2ku, k any real number. 0 30 = 1 + 2ki, k any real number 0 30 = 1 + 2ki, k an integer 2KT 0 = + 3 k any real number 0 0 = 1 + 2ku, k an integer 0 0 = 2KT 3 k an integer.D Question 1 16 pts Write the component form of the vector with initial point P(1, 2) and terminal point Q (3, 4). (3, 4) 3- (1, 2) 1- Not O v = Ov = O v = O v = Ov =D Question 4 The expression below is equivalent to which of the expressions that follow? 2cos2 0sin3l 1 O 2 (1 sin2 0)) sin9+ 1 1\"\" 2 cos2 9 (1 + cos2 9) + 1 2 (1 + sin2 9)) sin9 + 1 7\" 2 cos2 9 (1 cos2 9) + 1 D Question 2 16 pts Which of the below is the vector with initial point P(1, 6) and terminal point Q(6, 4). /'\\ v 2 5i 2j 7'\" v = 2i 5j F v = 5i 12j 5\" v = 12i+ 5j 20 pts D Question 6 Find the direction of the vector u = i - V3j 5 71 3 47 O A= 3 O 0 = 6 O AZ 3D Question 2 12.5 pts Which of the equations that follow is equivalent the equation below? 2 cos2 0 + cos 0 - 1 = 0 O (2 cos 0 - 1) (cos 0 + 1) = 0 O (2 cos 0 - 1) (cos 0 - 1) = 0 (2 cos 0 + 1) (cos 0 + 1) = 0 (2 cos 0 + 1) (cos 0 - 1) = 0D Question 5 12.5 pts Suppose sin (20) = cos 0. Which of the following equations could be used to solve for all values of 0? O sin 0 = 0 cos 0 O 2 sin O cos 0 - cos 0 = 0 sin(20) 0 cos O 2 sin 0 - 1 = 0Question 6 12.5 pts Suppose cos 0 = 1. Then 6 = m '_ 7r + 2k1r = 2k1r,k any real number. 'P' 0 + 21m = 2k1r,k any real number. \"7' 7r + 2k7r = 2km Is an integer. r\" 0 + 21m = 2k7r, k an integer. D Question 1 12.5 pts Find all solutions for sin 0 = 0 in the interval [0, 27). Tin Att O T ON O TT, 2TT OO, T O 0, TT, 2TT\fD Question 3 16 pts Find the length of vector u =. O V17 O V13 O V19 O V21D Question 4 16 pts Find the length of the vector 2u + 3v when u = and v = O V65 O V51 O V53 O V57 O V71