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If (logx)/(q-r)= (logy)/(r-p)=(logz)/(p-...

If `(logx)/(q-r)= (logy)/(r-p)=(logz)/(p-q)` prove that `x^(q+r).y^(r+p).z^(p+q)=x^p.y^q.z^r`

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