2. An angle O is in standard position and its terminal side passes through the point (k,7), where k is a nonzero real
number. Which of the following is true for all possible val-
ues of k ?
a. tan 0 > 0
b. sin 0 > 0
c. cos 0 = V1 - sin
d. sin 0 < 0
e. cot O is undefined
HELPPP