\[{{\left( \frac{a}{a+x} \right)}^{\frac{1}{2}}}+{{\left( \frac{a}{a-x} \right)}^{\frac{1}{2}}}=\] [DCE 1994; Pb. CET 2002; AIEEE 2002]

\[1+\frac{3{{x}^{2}}}{8{{a}^{2}}}+....\]

\[2+\frac{3{{x}^{2}}}{4{{a}^{2}}}+....\]

\[2+\frac{x}{a}+\frac{3{{x}^{2}}}{4{{a}^{2}}}+....\]

\[2-\frac{x}{a}+\frac{3{{x}^{2}}}{4{{a}^{2}}}\]+......

\[{{\left( \frac{a}{a+x} \right)}^{\frac{1}{2}}}+{{\left( \frac{a}{a-x

1.	\[{{\left( \frac{a}{a+x} \right)}^{\frac{1}{2}}}+{{\left( \frac{a}{a-x} \right)}^{\frac{1}{2}}}=\] [DCE 1994; Pb. CET 2002; AIEEE 2002]
A.	\[2+\frac{3{{x}^{2}}}{4{{a}^{2}}}+....\]
B.	\[1+\frac{3{{x}^{2}}}{8{{a}^{2}}}+....\]
C.	\[2+\frac{x}{a}+\frac{3{{x}^{2}}}{4{{a}^{2}}}+....\]
D.	\[2-\frac{x}{a}+\frac{3{{x}^{2}}}{4{{a}^{2}}}\]+......
Answer» B. \[1+\frac{3{{x}^{2}}}{8{{a}^{2}}}+....\]

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\[{{\left( \frac{a}{a+x} \right)}^{\frac{1}{2}}}+{{\left( \frac{a}{a-x} \right)}^{\frac{1}{2}}}=\] [DCE 1994; Pb. CET 2002; AIEEE 2002]

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