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OpenStudy (anonymous):
True or false? Let f(x)=cos^-1x. Then the domain of f(x) is all real numbers and the range is (-1,1).
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OpenStudy (anonymous):
True
OpenStudy (anonymous):
No, the domain is [-1 , 1] and the range is all real numbers.
OpenStudy (anonymous):
it can be also False ;)
OpenStudy (psymon):
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