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Physicist, Guitarist, Idealist

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600 ..

Lawyer;JM;ENTJ.

,,,,,, @ ugly loathsomeunsightlyhideous a=2[cos(2pai/17)+cos(4pai/17)+cos(8pai/17)+cos(16pai/17)]0a1=2[cos(6pai/17)+cos(10pai/17)+cos(12pai/17)+cos(14pai/17)] a+a1=-1,a*a1=-4, a,a1 x^2+x-4=0 |a||a1| b=2[cos(2pai/17)+cos(8pai/17)]0 b1=2[cos(4pai/17)+cos(16pai/17)]c=2[cos(6pai/17)+cos(10pai/17)]0 c1=2[cos(12pai/17)+cos(14pai/17)] b+b1=a b*b1=-1 c+c1=a1 c*c1=-1|b|,|b1|,|c|,|c1| 2cos(2pai/17)+2cos(8pai/17)b [2cos(2pai/17)]*[2cos(8pai/17)]=c2cos(2pai/17 x^2-bx+c=0 tm