What is the range of a cosine function?
1 answer:
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
which in interval notation would look like ![[-1, 1]](https://tex.z-dn.net/?f=%5B-1%2C%201%5D%20)
. The square brackets tell us to include the endpoints.
Answer: Choice D) All real numbers between -1 and 1 including -1 and 1
Note: we can write that as
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For cylinders to be similar, the ratio between their height and radius must be equal.Our cylinder's ratio is :
The only cylinder with same ratio is the one at the choice B.
The only cylinder with same ratio is the one at the choice B.