How many possible values for y are there where y = Cos-lo? O A. O Ο. O B. Infinite O C. 1 O D. 2

Question

asked Jul 2, 2023 35.2k views

1 Answer

Dawson · Answer 1 · 2023-07-06T14:32:25+0000

Answer:

B. Infinite

Explanation:

Given that:

$y=\cos ^(-1)(0)$

This implies that:

$\cos (y)=0$

From the graph of f(x)=cos(x), we observe that:

$\cos (x)=0\text{ for }x=(\pi)/(2)+k\pi\text{ for any }k\in\Z,\text{ }\Z\text{ being the set of integers}$

Therefore, there are infinitely possible values of y.