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# Is the following expression polynomial in one variable? State reasons for your answer. (iii)3 root t + t root 2

1.(iii)   Is the following expression polynomial in one variable? State reasons for your answer.

(iii)    $3\sqrt t + t\sqrt2$

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NO
Because we can observe that the exponent of variable t in term $3\sqrt t$ is  $\frac{1}{2}$  which is not a whole number.
Therefore this expression is not a polynomial.

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