Question

Quero a resposta da questão 19 c)

Answer 1

$f(x)= \frac{6-x}{x^2}$

$Para =f( \frac{3}{4} )$

∴ $f( \frac{3}{4} )= \frac{6- \frac{3}{4} }{( \frac{3}{4} )^2}$

$f( \frac{3}{4})= \frac{ \frac{24}{4} - \frac{3}{4} }{( \frac{3}{4} )* ( \frac{3}{4} ) }$

$f(\frac{3}{4})= \frac{ \frac{21}{4} }{ \frac{9}{16} }$

$f( \frac{3}{4} )= \frac{21}{4} * \frac{16}{9} = \frac{336}{36} = \frac{28}{3} =9,3333...$