Asked by claire
                what is the exact value of 7pi for all trig func.?
            
            
        Answers
                    Answered by
            drwls
            
    For trig functions, it is the same as the value for an angle of pi radians. 
sin(7 pi) = sin pi = 0
cos(7 pi) = cos pi = -1
tan(7 pi) = tan pi = 0
    
sin(7 pi) = sin pi = 0
cos(7 pi) = cos pi = -1
tan(7 pi) = tan pi = 0
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