Simplify ${{\log }_{4}}256-{{\log }_{4}}4+2$

If p varies inversely as the square of q and p = 4, find p when q = 2

Find the number of ways the letters of the word COMMITTEE can be permuted 

If $Q=\left( \begin{matrix}   3 & -2 & 1  \\   -2 & 1 & -1  \\   1 & -3 & 2  \\\end{matrix} \right)$ then –3Q is

Find the turning point of the function $y={{x}^{3}}-{{x}^{2}}-x$

Factorize completely $4{{u}^{2}}-36uv-uv+9{{v}^{2}}$

From the top of a tree, the angle of depression to a point on the ground 5m away is 60^o. Find the height of the tree.

Find the mean of the distribution

Find the determinant of $\left( \begin{matrix}   1 & 0 & 1  \\   1 & 1 & 0  \\   0 & 1 & 2  \\\end{matrix} \right)$

Find the mode of the distribution