Evaluate the expressions. \[ \begin{array}{l}-\left(\frac{7}{6}\right)^{0}=\square \\ 2\left(\frac{2}{3}\right)^{0}=\square\end{array} \]

257. Funksiýalaryň grafigini guruň: \( \begin{array}{ll}\text { a) } y=x^{2}+6 x ; & \text { ç) } y=0,5 x^{2}-4\end{array} \)

Find \( \|\mathbf{v}\| \). \( \mathbf{v}=-3 \mathbf{i}+7 \mathbf{j} \) \( \begin{array}{l}\|\mathbf{v}\|=\square \\ \text { (Simplify your answer. Type an exact answer, using radicals as needed.) }\end{array} \)

Simplify the expression without using a calculator. \( \ln e^{2}=\square \)

What is the absolute value of \( 2-i \) ? A. 2 B. \( \sqrt{3} \) C. \( \sqrt{5} \) D. \( 2+i \) E. \( -2+i \)

Using the change of base formula, express \( \log_{2}(8) \) in terms of common logarithm.