"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`"
Channel: Doubtnut
Date: 2020-07-12

"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`"