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Show that if c does not equal 0 then the sum of the reciprocals of the roots of the quadratic equation ax^2+bx+c=0 is -b/c.

 May 24, 2021
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Vietas, sum of reciprocals is x+y/xy and x+y is -b/a and xy is c/a so x+y/xy is -b/c

 May 24, 2021

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