Question

dada a função f(x) 1/x-2 + 1/x-3 determine o valor de f(1) + f(0)/f(-1) - f(-2)

Answer 1

$f(1)= \frac{1}{1-2}+ \frac{1}{1-3} = -\frac{3}{2}$
$f(0)= \frac{1}{-2}+\frac{1}{-3} = -\frac{5}{6}$
$f(-1)= \frac{1}{-1-2}+ \frac{1}{-1-3} = -\frac{7}{12}$
$f(-2)= \frac{1}{-2-2}+ \frac{1}{-2-3} =- \frac{9}{20}$

$\frac{-\frac{3}{2}-\frac{5}{6} }{-\frac{7}{12}+ \frac{9}{20} } = \frac{35}{2}$