Question

f(3)-f(2)=x^-2+5 evaluar función​

Answer 1

Respuesta:

46/9 - 21/4 = - 5/36

Explicación paso a paso:

$f(3) = \frac{1}{ {3}^{2} } + 5 \\ f(2) = \frac{1}{ {2}^{2} } + 5$

Al evalúar queda

$f(3) = \frac{1}{9} + 5 \\ f(2) = \frac{1}{4} + 5$

$f(3) = \frac{1 + 45}{9} = \frac{46}{9} \\ f(2) = \frac{1 + 20}{4} = \frac{21}{4}$

$f(3) - f(2) = \frac{46}{9} - \frac{21}{4} = - \frac{5}{36}$