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What is the range of the cosine function f(x)=2Cosxf(x)=2Cosxf(x)=2Cosx ?
(−∞,∞)(-∞,∞)(−∞,∞)
[−2,2][-2,2][−2,2]
Is the sentence true or false?
The range of the cosine function f(x)=3cosxf(x)=3\cos xf(x)=3cosx is [−1,1][-1,1][−1,1]
True
False
What is the range of the cosine function
g(x)=9cosxg(x)=9\cos xg(x)=9cosx ?
[−9,9][-9,9][−9,9]
x<6x<6x<6
What is the range of the cosine function f(x)=cos2xf(x)=\cos2xf(x)=cos2x ?
[−1,1][-1,1][−1,1]
[0,2)[0,2)[0,2)
What is the range of the cosine function f(x)=cos3xf(x)=\cos3xf(x)=cos3x ?
RℝR
What is the range of the cosine function f(x)=3cosxf(x)=3\cos xf(x)=3cosx ?
[−3,3][-3,3][−3,3]
x<2x<2x<2
What is the range of the cosine function h(x)=5cosxh(x)=5\cos xh(x)=5cosx ?
[−5,5][-5,5][−5,5]
What is the range of the cosine function f(x)=2cosxf(x)=2\cos xf(x)=2cosx ?
What is the range of the cosine function f(x)=cosxf(x)=\cos xf(x)=cosx ?
x<8x<8x<8
What is the range of the cosine function f(x)=xf(x)=xf(x)=x ?
Integer Numbers
[0,1][0,1][0,1]
It is done.