1.

If \[{{T}_{0}},{{T}_{1}},{{T}_{2}},....{{T}_{n}}\] represent the terms in the expansion of \[{{(x+a)}^{n}}\], then \[{{({{T}_{0}}-{{T}_{2}}+{{T}_{4}}-....)}^{2}}\] \[+{{({{T}_{1}}-{{T}_{3}}+{{T}_{5}}-....)}^{2}}=\]

A. \[({{x}^{2}}+{{a}^{2}})\]
B. \[{{({{x}^{2}}+{{a}^{2}})}^{n}}\]
C. \[{{({{x}^{2}}+{{a}^{2}})}^{1/n}}\]
D. \[{{({{x}^{2}}+{{a}^{2}})}^{-1/n}}\]
Answer» C. \[{{({{x}^{2}}+{{a}^{2}})}^{1/n}}\]


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