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OpenStudy (anonymous):
what is the range of the function f(x)=arcos(x) 1. (-infinity, infinity) 2. [-pi/2, pi/2] 3. [0, pi] 4. (-infinity, -1) U (1, infinity)
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OpenStudy (anonymous):
2
OpenStudy (anonymous):
how is that the same as arsin(x)?
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