Asked by Mickeyyyy
Dewight needs to restrict the domain of the cosine function so that the inverse is a function. Which description best describes how she could restrict the domain?
A) So that y = cos(x) is always decreasing
B) So that y = cos(x) only has one maximum
C) So that y = cos(x) only has one minimum <<my answer
D) So that y = cos(x) only has two maximum
A) So that y = cos(x) is always decreasing
B) So that y = cos(x) only has one maximum
C) So that y = cos(x) only has one minimum <<my answer
D) So that y = cos(x) only has two maximum
Answers
Answered by
Steve
you don't want any maxima or minima, because that means the graph bends back on itself, meaning it fails the horizontal-line test.
(A) is what you want. the domain is [0,pi]
(A) is what you want. the domain is [0,pi]
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