Question

Which point forms a terminal side with the origin that creates an angle with the sign of -(sqrt2)/2 and a Cosine of -(sqrt2)/2?

Answer 1

Question:

Solution:

Consider the following trigonometric circle:

where the x-coordinate is cosine and the y-coordinate is the sine of the angle. Thus if the data is as given in the problem, and taking into account the above picture we can conclude that the correct answer is:

$L$