If \[x=a+b,y=a\omega +b{{\omega }^{2}},z=a{{\omega }^{2}}+b\omega \], then the value of \[{{x}^{3}}+{{y}^{3}}+{{z}^{3}}\] is equal to [Roorkee 1977; IIT 1970]

If \[x=a+b,y=a\omega +b{{\omega }^{2}},z=a{{\omega }^{2}}+b\omega \],�

1.	If \[x=a+b,y=a\omega +b{{\omega }^{2}},z=a{{\omega }^{2}}+b\omega \], then the value of \[{{x}^{3}}+{{y}^{3}}+{{z}^{3}}\] is equal to [Roorkee 1977; IIT 1970]
A.	\[{{a}^{3}}+{{b}^{3}}\]
B.	\[3({{a}^{3}}+{{b}^{3}})\]
C.	\[3({{a}^{2}}+{{b}^{2}})\]
D.	None of these
Answer» C. \[3({{a}^{2}}+{{b}^{2}})\]

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If \[x=a+b,y=a\omega +b{{\omega }^{2}},z=a{{\omega }^{2}}+b\omega \], then the value of \[{{x}^{3}}+{{y}^{3}}+{{z}^{3}}\] is equal to [Roorkee 1977; IIT 1970]

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