A) 9
B) 5
C) 7
D) 3
Correct Answer: D
Solution :
\[\sqrt{5+\sqrt{11+\sqrt{19+\sqrt{29+\sqrt{49}}}}}\] \[=\sqrt{5+\sqrt{11+\sqrt{19+\sqrt{29+7}}}}\] \[=\sqrt{5+\sqrt{11+\sqrt{19+\sqrt{36}}}}\] \[=\sqrt{5+\sqrt{11+\sqrt{25}}}\] \[=\sqrt{5+\sqrt{11+5}}\] \[=\sqrt{5+\sqrt{16}}\] \[=\sqrt{5+4}=\sqrt{9}=3\]
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