If the roots of the equations \[p{{x}^{2}}+2qx+r=0\]and \[q{{x}^{2}}-2\sqrt{pr}x+q=0\] be real, then

If the roots of the equations \[p{{x}^{2}}+2qx+r=0\]and \[q{{x}^{2}}-2

1.	If the roots of the equations \[p{{x}^{2}}+2qx+r=0\]and \[q{{x}^{2}}-2\sqrt{pr}x+q=0\] be real, then
A.	\[p=q\]
B.	\[{{q}^{2}}=pr\]
C.	\[{{p}^{2}}=qr\]
D.	\[{{r}^{2}}=pr\]
Answer» C. \[{{p}^{2}}=qr\]

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If the roots of the equations \[p{{x}^{2}}+2qx+r=0\]and \[q{{x}^{2}}-2\sqrt{pr}x+q=0\] be real, then

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