If the roots of the equation \[({{p}^{2}}+{{q}^{2}}){{x}^{2}}\]\[-2q(p+r)x\]+ \[({{q}^{2}}+{{r}^{2}})=0\] be real and equal, then \[p,q,r\]will be in

If the roots of the equation \[({{p}^{2}}+{{q}^{2}}){{x}^{2}}\]\[-2q(p

1.	If the roots of the equation \[({{p}^{2}}+{{q}^{2}}){{x}^{2}}\]\[-2q(p+r)x\]+ \[({{q}^{2}}+{{r}^{2}})=0\] be real and equal, then \[p,q,r\]will be in
A.	A.P.
B.	G.P.
C.	H.P.
D.	None of these
Answer» C. H.P.

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If the roots of the equation \[({{p}^{2}}+{{q}^{2}}){{x}^{2}}\]\[-2q(p+r)x\]+ \[({{q}^{2}}+{{r}^{2}})=0\] be real and equal, then \[p,q,r\]will be in

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