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Question
The value of $√{9 + 2√{ 16} +√^3{ 512}}$ is :
Options:
A .  $2√8$
B .  5
C .  $3√6$
D .  6
Answer: Option B
Answer: (b)Expression=$√{9 + 2√{16} +√^3{ 512}}$=$√{9 + 2√{4×4} +√^3{8×8×8}}$=$√{9 + 2×4+8}$=$√25$ =5

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