A) \[{{2}^{\frac{1}{2}}}\]
B) 2
C) 4
D) \[-\,2\]
Correct Answer: A
Solution :
[a] \[a=64,\]\[b=289;\]\[{{(\sqrt{\sqrt{a}+\sqrt{b}}-\sqrt{\sqrt{b}-\sqrt{a}})}^{{\scriptstyle{}^{1}/{}_{2}}}}\] Putting the value of a and b \[{{\left( \sqrt{\sqrt{64}+\sqrt{289}}-\sqrt{\sqrt{289}-\sqrt{64}} \right)}^{\frac{1}{2}}}\] \[{{(\sqrt{8+17}-\sqrt{17-8})}^{{\scriptstyle{}^{1}/{}_{2}}}},\] \[{{(\sqrt{25}-\sqrt{9})}^{{\scriptstyle{}^{1}/{}_{2}}}}\,{{(5-3)}^{{\scriptstyle{}^{1}/{}_{2}}}}\] \[\Rightarrow \] \[{{(2)}^{{\scriptstyle{}^{1}/{}_{2}}}}\] |
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