The sum of coefficients in the expansion of \[{{(1+x+{{x}^{2}})}^{n}}\] is [EAMCET 2002]

The sum of coefficients in the expansion of \[{{(1+x+{{x}^{2}})}^{n}}\

1.	The sum of coefficients in the expansion of \[{{(1+x+{{x}^{2}})}^{n}}\] is [EAMCET 2002]
A.	2
B.	\[{{3}^{n}}\]
C.	\[{{4}^{n}}\]
D.	\[{{2}^{n}}\]
Answer» C. \[{{4}^{n}}\]

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The sum of coefficients in the expansion of \[{{(1+x+{{x}^{2}})}^{n}}\] is [EAMCET 2002]

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