Для матриць A та В знайти матриці: 1. \( \mathrm{A}+\mathrm{B} \); 2. \( 2 \mathrm{~A} ; \) 3. \( \mathrm{A}-\mathrm{B} ; \) 4. A * B \( A=\left(\begin{array}{lll}1 & 2 & 3 \\ 4 & 5 & 6\end{array}\right) ; \quad B=\left(\begin{array}{ccc}-1 & 0 & 1 \\ 2 & -3 & 4\end{array}\right) \)

7. Simplify \( \frac{3=3 \sqrt{2}}{3+2 \sqrt{2}} \) \( \begin{array}{lll}\text { A. } 1 & \text { B. } 17=\sqrt{2} & \text { C. } 17\end{array} \)

The square not of \( 5+2 \sqrt{6} \)

The Square root of \( 18+8 \sqrt{2} \)

In the following exercises, determine whether each ordered pair is a solution to the given inequality. 504. Determine whether each ordered pair is a solution to the inequality \( y>x-1 \) : (a) \( (0,1) \) (b) \( (-4,-1) \) (c) \( (4,2) \) (d) \( (3,0) \) (a) \( (-2,-3) \)

Find the square not of \( 10+2 \sqrt{21} \)