Question

What is the rangeof y=cos[x],

Answer 1

Answer:

-1 to 1

Step-by-step explanation:

The range of y=cosx is from -1 to 1. In interval notation, the range is [-1,1] * Note that square brackets [ ] are used because because y=cosx can actually equal -1 and 1 ( for example, if you plug in x=π , y=−1 ).