F(x)=1/x-1 dan g (x) =x/2x-1 bantuuu kakkk

F(x)=1/x-1 dan g (x) =x/2x-1 bantuuu kakkk

$f + g = frac{1}{x - 1} + frac{x}{2x - 1} \ = frac{(2x - 1) + x(x - 1)}{(x - 1)(2x - 1)} \ = frac{2x - 1 + {x}^{2} - x}{ {2x}^{2} - 3x + 1} \ = frac{ {x}^{2} + x - 1 }{ {2x}^{2} - 3x + 1}$
$fg = frac{1}{x - 1} . frac{x}{2x - 1} = frac{x}{ {2x}^{2} - 3x + 1}$
$frac{f}{g} = frac{ frac{1}{ x - 1} }{ frac{x}{2x - 1} } \ = frac{1}{x - 1} . frac{2x - 1}{x} \ = frac{2x - 1}{ {x}^{2} - x }$