Find the absolute extreme values of the function on the interval.f(x) = tan x, -  ? x ? 

A. absolute maximum is -1 at x = ; absolute minimum is  at x = - 
B. absolute maximum is  at x = ; absolute minimum is -1 at x = - 
C. absolute maximum is  at x =  and - ; no minimum value
D. absolute maximum is  at x = ; absolute minimum is -1 at x = - 


Answer: B

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