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" If "P(q-r)x^(2)+q(r-p)x+r(p-q)=0" has ...

" If "P(q-r)x^(2)+q(r-p)x+r(p-q)=0" has equal roots then "(2)/(q)=

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If p(q-r)x^(2)+q(r-p)x+r(p-q)=0 has equal roots,then prove that (2)/(q)=(1)/(p)+(1)/(r)

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If p(q-r)x^2+q(r-p)x+r(p-q)=0 has equal roots, then prove that 2/q=1/p+1/rdot

If p(q-r)x^2+q(r-p)x+r(p-q)=0 has equal roots, then prove that 2/q=1/p+1/rdot

If p(q-r)x^2+q(r-p)x+r(p-q)=0 has equal roots, then prove that 2/q=1/p+1/rdot