Question

How many possible values for y are there where y = cos^-1(0)?

A) 1
B) Infinite
C) 2
D) 0

Answer 1

There is only 1 possible value for y where y = cos^-1(0), which is y = 0.

Step-by-step explanation:

The equation y = cos-1(0) represents the inverse cosine function of 0. The inverse cosine function returns the angle in radians whose cosine is the given value. Since cos(0) = 1, the equation becomes y = cos-1(1). The range of the inverse cosine function is between 0 to π, so there is only 1 possible value for y, which is y = 0.