What is the minimum value of \[px+qy\] \[(p>0,q>0)\] when\[xy={{r}^{2}

1.	What is the minimum value of \[px+qy\] \[(p>0,q>0)\] when\[xy={{r}^{2}}\]?
A.	\[2r\sqrt{pq}\]
B.	\[2pq\sqrt{r}\]
C.	\[-2r\sqrt{pq}\]
D.	\[2rpq\]
Answer» B. \[2pq\sqrt{r}\]

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What is the minimum value of \[px+qy\] \[(p>0,q>0)\] when\[xy={{r}^{2}}\]?

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