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3 years ago

What is the domain of y = cos θ

Mathematics

2 answers:

ElenaW [278]3 years ago

5 0

All real numbers / all x
if you're asking for range as well then its -1<x<1

rosijanka [135]3 years ago

3 0

Answer:

The domain is all real numbers or $x\in(-\infty,\infty)$

Step-by-step explanation:

The definition of domain is :

Domain is the set of x values for which the function is defined.

The given function is y = cos θ and we know that θ can take any value. In other words, for any value of θ, the function y = cos θ is defined.

Therefore, we can conclude that the domain of y = cos θ is the set of all real values.

In interval notation we can write it as

$x\in(-\infty,\infty)$

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