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Question
State whether the following number is a surd or not.
`root (4)(16)`
Solution
`root (4)(16)`
= `root (4)(2^4)`
= `(2 xx 2 xx 2 xx 2)^(1/4)`
= `(2^4)^(1/4)`
= 2 ....(Rational number)
So, `root (4)(16) ` is not a surd.
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