If $X=\{{{n}^{2}}+1:n=0,2,3\}$and $Y=\{n+1:n=2,3,5\}$ find $X\cap Y$

If $\frac{1+\sqrt{2}}{1-\sqrt{2}}$is expressed in the form $x+y\sqrt{2}$, find the values of x and y

If ${{\log }_{{{x}^{\tfrac{1}{2}}}}}64=3$, find the value of x

Simplify ${{16}^{-\tfrac{1}{2}}}\times {{4}^{-\tfrac{1}{2}}}\times {{27}^{\tfrac{1}{3}}}$

The cost of kerosene per litre increases from N 60 to N 85. What is the percentage rate of increase

Calculate the simple interest on N7 500 for 8 years at 5% per annum

Express 123456 to 3 significant figure

Evaluate $\frac{\tfrac{3}{8}\div \tfrac{1}{2}-\tfrac{1}{3}}{\tfrac{1}{8}\times \tfrac{2}{3}+\tfrac{1}{3}}$

If 125_x = 20₁₀ find x

Add 1101₂, 10111₂ , and 111₂