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Natasha_Volkova [10]
2 years ago
12

Please help me. NO LINKS!!​

Mathematics
2 answers:
stiks02 [169]2 years ago
6 0

The domain (input values) of the cosine function is all negative and positive angle measures.

Let the function be f(x) = cos(x)

The domain of cos(x) is -∞ < x < ∞

The range is -1 ≤ f(x) ≤ 1

Hence, domain of cos(x) is all (+) and (-) angle measures.

Same goes with sine function as well

For function f(x) = sin(x)

The domain is -∞ < x < ∞ and range -1 ≤ f(x) ≤ 1

However for f(x) = tan(x) the same is not applicable.

NikAS [45]2 years ago
3 0

Answer:

A.  all negative and positive angle measures.

Step-by-step explanation:

The domain of a function is the set of input values (x-values).

The cosine function is a <u>continuous function</u>, and therefore has <u>no restrictions</u> throughout its domain.

Therefore, its domain is all real numbers.

<u>Set notation</u>:  { x | x ∈ R }

<u>Interval notation</u>: (-∞, ∞)

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