$\sqrt{2+\sqrt{2+\sqrt{2+.....}}}$ is equal to
1). $\sqrt{2}$
2). $2\sqrt{2}$
3). 2
4). 3
1. The rationalising factor of $3\sqrt{3}$ is :
3. Arrange the followtngin descending orders : $\sqrt[3]{4}$ ,$\sqrt{2}$,$\sqrt[6]{3}$, $\sqrt[4]{5}$
5. Solve for x: $3^{x}-3^{x-1}$ = 486.
6. $\frac{(3.06)^{3}-(1.98)^{3}}{(3.06)^{2} + 3.06\times 1.98 + (1.98)^{2}}$ is equal to :
7. Simplified form of $\left[\left(\sqrt[5]{x^{\frac{-3}{5}}}\right)^{\frac{-5}{3}}\right]^{5}$ is :
9. $\frac{1.49\times 14.9 - 0.51\times 5.1}{14.9 - 5.1}$ is equal to :
10. The least one of $2\sqrt{3}$,$2\sqrt[4]{5}$,$\sqrt{8}$, and $3\sqrt{2}$ is