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Question #72c35

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Dec 3, 2016

#tan(-(200pi)/3)#
#=-tan((200pi)/3)#
#=-tan((198pi+2pi)/3)#

#=-tan(66pi+(2pi)/3)#

#=-tan(33xx2pi+(2pi)/3)#

#=-tan((2pi)/3)#

#=-tan(pi-pi/3)#

#=tan(pi/3)#

#=sqrt3#

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