Determina por extensión y clasifica \[ A=\{x / x \in N \wedge x>=10 \wedge x<16\} \]

Question simplify: \( \sqrt[6]{x^{18}} \)

Question simplify \( \sqrt[3]{-128} \). Express the answer using a positive radicand.

Question Estimate \( \sqrt[3]{4} \) between two consecutive whole numbers. Provide your answer below:

Question Simplify: \( \sqrt{9+16} \) (Enter \( \varnothing \) if your answer is not a real number.)

\( 1 \leftarrow \quad \begin{array}{l}\text { Write the first four terms of the recursive sequence. } \\ a_{1}=6, a_{n}=5-a_{n-1} \text { for } n \geq 2\end{array} \) \( a_{1}=\square \) (Type an integer or a simplified fraction.)