The value of $ [(0.87)^{2}+(0.13)^{2}(0.87)\times (0.26)]^{2013}$ is
1). 0
2). 2013
3). 1
4). -1
1. Find the value of : $(0.98)^{3}+ (0.02)^{3}+3\times 0.98\times 0.02-1$
3. $\left(3+\frac{1}{\sqrt{3}}+\frac{1}{3+\sqrt{3}}+\frac{1}{\sqrt{3}-3}\right)$ is equal to
4. The rationalising factor of $3\sqrt{3}$ is :
6. Simplify ; $\left[\sqrt[3]{\sqrt[6]{5^{9}}}\right]^{4}$
8. $(256)^{0.16}\times (4)^{0.36}$ is equal to :
9. Evaluate $\sqrt{20}+\sqrt{12}+\sqrt[3]{729}-\frac{4}{\sqrt{5}-\sqrt{3}}-\sqrt{81}$