Mathematics, 04.02.2020 17:49, koss929
If the roots of the quadratic equation : p(q-r)x^2+q(r-p)x+r(p-q)=0 are equal show that 1/p+1/r=2/q
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If the roots of the quadratic equation : p(q-r)x^2+q(r-p)x+r(p-q)=0 are equal show that 1/p+1/r=2/q...
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