If \( (f) \) is a quadratic function If \( f(x)=(x+K)^{2}+1 \) and the equation of axis of symmetry is \( x=2 \) \( \Rightarrow \) find the value of \( K \) \( \rightarrow \) graph the function with \( x \in[0,4] \) The minimum value for the function

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

Rationalize the denominator of \( \frac{7}{2 + \sqrt{3}} \).

14. \( (2 a-7 b)(2 a+7 b)_{\mathrm{Ypx}} \)

Solve the equation: \( \sqrt{x + 4} = 6 \)

Exercice 1 1) Compléter avec l'un des symboles : \( \epsilon ; \notin ; \subset \) ou \( \notin \) \( \{0 ;-7 ; 12\} \ldots \ldots \mathbb{N}^{*} ; \frac{5 \pi-\pi}{2 \pi-\pi} \ldots . \mathbb{Q} ;\left\{-1 ; \frac{18}{6} ; \sqrt{36} ;-7\right\} \ldots . \mathbb{Z} ; \frac{7}{3} \ldots \ldots \) ID 2) donner l'écriture scientifique : \( A=\frac{4 \times 300^{2} \times\left(2 \times 10^{-6}\right)^{-2}}{(0.01)^{-3}} \)