Для начала найдем значение b и c.
a / b = 2 => b = a / 2a / c = 3 => c = a / 3
a) [tex] \frac{a}{bc} = \frac{a}{a/2 * a/3} = \frac{a}{a^2 / 6} = 6 [/tex]
б) [tex] \frac{abc}{ {2a}^{2} } + \frac{ac}{b} = \frac{a (a / 2) (a / 3)}{2a^2} + \frac {a * (a / 3)}{a/2} = \frac{a^3 / 6}{2a^2} + \frac {a^2 / 3}{a/2} = \frac{a}{12} + \frac{2a}{3} = \frac{a + 8a}{12} = \frac{9a}{12} = \frac{3a}{4} [/tex]
Для начала найдем значение b и c.
a / b = 2 => b = a / 2
a / c = 3 => c = a / 3
a) [tex] \frac{a}{bc} = \frac{a}{a/2 * a/3} = \frac{a}{a^2 / 6} = 6 [/tex]
б) [tex] \frac{abc}{ {2a}^{2} } + \frac{ac}{b} = \frac{a (a / 2) (a / 3)}{2a^2} + \frac {a * (a / 3)}{a/2} = \frac{a^3 / 6}{2a^2} + \frac {a^2 / 3}{a/2} = \frac{a}{12} + \frac{2a}{3} = \frac{a + 8a}{12} = \frac{9a}{12} = \frac{3a}{4} [/tex]