Question

Выполните действия №1
а) x/3 + x/4
b) 1/2x - 1/6x
в) 1/x² + 1/x⁴​

Answer 1

Ответ:

$\frac{x}{3} + \frac{x}{4} = \frac{4x}{12} + \frac{3x}{12} = \\ \frac{7x}{12} \\ \frac{1}{2x} - \frac{1}{6x} = \frac{6}{12x} - \frac{2}{12x} = \\ \frac{4}{12x} = \frac{1}{3x} \\ \frac{1}{ {x}^{2} } + \frac{1}{ {x}^{4} } = \frac{ {x}^{2} }{ {x}^{4} } + \frac{1}{ {x}^{4} } = \frac{ {x}^{2} + 1}{ {x}^{4} }$