The roots of the given equation (p − q)x2 + (q − r)x + (r − p) = 0 are :

1
\(\frac{p-q}{r-p}, 1\)
2
\(\frac{q-r}{p-q}, 1\)
3
\(\frac{r-p}{p-q}, 1\)
4
None of these

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