June 2023 1 9 Report
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2. Usando la prueba algebraica determina şi las siquientes funciones son pares, impares o ninguna de las 2.

[tex]a) \: f(x) = \frac{1}{{x}^{2} + 1} [/tex]
[tex]b) \: g(x) = {x}^{3} - 3x[/tex]
[tex]c) \: h(x) = \sqrt{9 - {x}^{2} } [/tex]
[tex]d) \: f(t) = 3 {t}^{2} + 2t[/tex]
[tex]e) \: r(a) = \frac{1}{a + 3} [/tex]


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