The value of $\sqrt{72+\sqrt{72+\sqrt{72+.....}}}$ is
1). 9
2). 8
3). 18
4). 12
2. If $5\sqrt{5}\times 5^{3}+5^{-\frac{3}{2}}$=$5^{a+2}$ ,then the value of a is
3. The value of $(3+2\sqrt{2})^{-3}+(3-2\sqrt{2})^{-3}$ is :
4. The square root of $14+6\sqrt{5}$ is
5. Evaluate $\sqrt{20}+\sqrt{12}+\sqrt[3]{729}-\frac{4}{\sqrt{5}-\sqrt{3}}-\sqrt{81}$
6. Which Is greater $\sqrt[3]{2}$ or $\sqrt{3}$
7. Simplified form of $\left[\left(\sqrt[5]{x^{\frac{-3}{5}}}\right)^{\frac{-5}{3}}\right]^{5}$ is :
8. Find the simplest value of $2\sqrt{50}+\sqrt{18}-\sqrt{72}$ (given $\sqrt{2} $= 1.414)
10. Among the numbers $\sqrt{2}$,$\sqrt[3]{9}$,$\sqrt[4]{16}$,$\sqrt[5]{32}$ ,the greatest one is :