Question

Решите пожалуйста номер 258

Answer 1

$y = x + \frac{1}{x} \\ g(4) = 4 + \frac{1}{4} = 4 + 0.25 = 4.25 \\ \\ g( \frac{1}{3} ) = \frac{1}{3} + \frac{1}{ \frac{1}{3} } = \frac{1}{3} + 3 = 3 \frac{1}{3} \\ \\ g( - 5) = - 5 + \frac{1}{ - 5} = - 5 - \frac{1}{5} = - 5 \frac{1}{5} = - 5.2 \\ \\ g( - \frac{1}{7} ) = - \frac{1}{7} + \frac{1}{ - \frac{1}{7} } = - \frac{1}{7} - 7 = - 7 \frac{1}{7}$