Não sei como resolvo este exercício alguém pode mim ajuda
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Boa tarde Tamires!
Solução!
![a)\\\
f(x)= \dfrac{1}{x} \\\\\
f( \sqrt{2})= \dfrac{1}{ \sqrt{2} }\\\\\\\
f( \sqrt{2})= \dfrac{1}{ \sqrt{2}}\times\dfrac{\sqrt{2} }{\sqrt{2} }\\\\\\\
f( \sqrt{2})= \dfrac{ \sqrt{2}}{\sqrt{4}}\\\\\\\\
f( \sqrt{2})= \dfrac{ \sqrt{2} }{2}\\\\\\\\\\\\\\\
b)\\\\\
f( \frac{1}{2})= \dfrac{1}{ \dfrac{1}{2} }\\\\\\\\\
f( \frac{1}{2})= 1 \times \dfrac{2}{1}\\\\\\\\\
f( \frac{1}{2})= \frac{2}{1} \\\\\\
f( \frac{1}{2})= 2](https://tex.z-dn.net/?f=%0Aa%29%5C%5C%5C%0Af%28x%29%3D+%5Cdfrac%7B1%7D%7Bx%7D+%5C%5C%5C%5C%5C%0Af%28+%5Csqrt%7B2%7D%29%3D+%5Cdfrac%7B1%7D%7B+%5Csqrt%7B2%7D+%7D%5C%5C%5C%5C%5C%5C%5C%0Af%28+%5Csqrt%7B2%7D%29%3D+%5Cdfrac%7B1%7D%7B+%5Csqrt%7B2%7D%7D%5Ctimes%5Cdfrac%7B%5Csqrt%7B2%7D+%7D%7B%5Csqrt%7B2%7D+%7D%5C%5C%5C%5C%5C%5C%5C%0Af%28+%5Csqrt%7B2%7D%29%3D+%5Cdfrac%7B+%5Csqrt%7B2%7D%7D%7B%5Csqrt%7B4%7D%7D%5C%5C%5C%5C%5C%5C%5C%5C%0Af%28+%5Csqrt%7B2%7D%29%3D+%5Cdfrac%7B+%5Csqrt%7B2%7D+%7D%7B2%7D%5C%5C%5C%5C%5C%5C%5C%5C%5C%5C%5C%5C%5C%5C%5C%0Ab%29%5C%5C%5C%5C%5C%0Af%28+%5Cfrac%7B1%7D%7B2%7D%29%3D+%5Cdfrac%7B1%7D%7B+%5Cdfrac%7B1%7D%7B2%7D+%7D%5C%5C%5C%5C%5C%5C%5C%5C%5C%0Af%28+%5Cfrac%7B1%7D%7B2%7D%29%3D+1+%5Ctimes++%5Cdfrac%7B2%7D%7B1%7D%5C%5C%5C%5C%5C%5C%5C%5C%5C%0Af%28+%5Cfrac%7B1%7D%7B2%7D%29%3D+%5Cfrac%7B2%7D%7B1%7D+%5C%5C%5C%5C%5C%5C%0Af%28+%5Cfrac%7B1%7D%7B2%7D%29%3D+2 "a)\\\
f(x)= \dfrac{1}{x} \\\\\
f( \sqrt{2})= \dfrac{1}{ \sqrt{2} }\\\\\\\
f( \sqrt{2})= \dfrac{1}{ \sqrt{2}}\times\dfrac{\sqrt{2} }{\sqrt{2} }\\\\\\\
f( \sqrt{2})= \dfrac{ \sqrt{2}}{\sqrt{4}}\\\\\\\\
f( \sqrt{2})= \dfrac{ \sqrt{2} }{2}\\\\\\\\\\\\\\\
b)\\\\\
f( \frac{1}{2})= \dfrac{1}{ \dfrac{1}{2} }\\\\\\\\\
f( \frac{1}{2})= 1 \times \dfrac{2}{1}\\\\\\\\\
f( \frac{1}{2})= \frac{2}{1} \\\\\\
f( \frac{1}{2})= 2")
Boa tarde!
Bons estudos!
Solução!
Boa tarde!
Bons estudos!
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