In the expansion of \[{{(x+a)}^{n}}\], the sum of odd terms is P and sum of even terms is Q, then the value of \[({{P}^{2}}-{{Q}^{2}})\] will be [RPET 1997; Pb. CET 1998]

\[{{({{x}^{2}}+{{a}^{2}})}^{n}}\]

\[{{({{x}^{2}}-{{a}^{2}})}^{n}}\]

In the expansion of \[{{(x+a)}^{n}}\], the sum of odd terms is P and s

1.	In the expansion of \[{{(x+a)}^{n}}\], the sum of odd terms is P and sum of even terms is Q, then the value of \[({{P}^{2}}-{{Q}^{2}})\] will be [RPET 1997; Pb. CET 1998]
A.	\[{{({{x}^{2}}+{{a}^{2}})}^{n}}\]
B.	\[{{({{x}^{2}}-{{a}^{2}})}^{n}}\]
C.	\[{{(x-a)}^{2n}}\]
D.	\[{{(x+a)}^{2n}}\]
Answer» C. \[{{(x-a)}^{2n}}\]

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In the expansion of \[{{(x+a)}^{n}}\], the sum of odd terms is P and sum of even terms is Q, then the value of \[({{P}^{2}}-{{Q}^{2}})\] will be [RPET 1997; Pb. CET 1998]

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