If the roots of the cubic equation \[a{{x}^{3}}+b{{x}^{2}}+cx+d=0\] are in G.P., then

If the roots of the cubic equation \[a{{x}^{3}}+b{{x}^{2}}+cx+d=0\] ar

1.	If the roots of the cubic equation \[a{{x}^{3}}+b{{x}^{2}}+cx+d=0\] are in G.P., then
A.	\[{{c}^{3}}a={{b}^{3}}d\]
B.	\[c{{a}^{3}}=b{{d}^{3}}\]
C.	\[{{a}^{3}}b={{c}^{3}}d\]
D.	\[a{{b}^{3}}=c{{d}^{3}}\]
Answer» B. \[c{{a}^{3}}=b{{d}^{3}}\]

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If the roots of the cubic equation \[a{{x}^{3}}+b{{x}^{2}}+cx+d=0\] are in G.P., then

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