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• Identical expressions

• Abs((- one + cos(pi/n))/(- one + cos(pi/(one + n))))
• Abs(( minus 1 plus co sinus of e of ( Pi divide by n)) divide by ( minus 1 plus co sinus of e of ( Pi divide by (1 plus n))))
• Abs(( minus one plus co sinus of e of ( Pi divide by n)) divide by ( minus one plus co sinus of e of ( Pi divide by (one plus n))))
• Abs-1 + cospi/n/-1 + cospi/1 + n
• Abs((-1 + cos(pi divide by n)) divide by (-1 + cos(pi divide by (1 + n))))

• Similar expressions

• Abs((-1 - cos(pi/n))/(-1 + cos(pi/(1 + n))))
• Abs((-1 + cos(pi/n))/(-1 - cos(pi/(1 + n))))
• Abs((-1 + cos(pi/n))/(1 + cos(pi/(1 + n))))
• Abs((1 + cos(pi/n))/(-1 + cos(pi/(1 + n))))
• Abs((-1 + cos(pi/n))/(-1 + cos(pi/(1 - n))))