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valentinak56 [21]
3 years ago
8

What is the range of a cosine function?

Mathematics
1 answer:
klemol [59]3 years ago
4 0
The smallest y can be is y = -1. The largest it can be is y = 1. The value of y can be anything in between. The value of y is a real number.

Answer: Choice D) All real numbers between -1 and 1 including -1 and 1

Note: we can write that as -1 \le y \le 1 which in interval notation would look like [-1, 1]. The square brackets tell us to include the endpoints.
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