Question

Якщо 1/a=1/b-1/c,то c=

Answer 1

Объяснение:

$\frac{1}{a}=\frac{1}{b} -\frac{1}{c}\\\frac{1}{c}=\frac{1}{b}-\frac{1}{a}\\\frac{1}{c}=\frac{a-b}{ab} \\c=\frac{ab}{a-b}.$

Answer 2

$\frac{1}{a}=\frac{1}{b}-\frac{1}{c}\\\\\frac{1}{c}=\frac{1}{b}-\frac{1}{a}\\\\\frac{1}{c}=\frac{a-b}{ab}\\\\c=\frac{ab}{a-b}\\\\Otvet:\boxed{c=\frac{ab}{a-b}}$