Q: If pq+qr+rp=0 then find the value of $$ {p^{2}\over {p^{2}-qr}}+{q^ – McqOptions

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1.	Q: If pq+qr+rp=0 then find the value of $$ {p^{2}\over {p^{2}-qr}}+{q^{2}\over {q^{2}-rp}}+{r^{2}\over {r^{2}-pq}}$$
A.	0
B.	1
C.	-1
D.	3
Answer» C. -1

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