Question

1. Calcule o seno, o cosseno e a tangente do ângulo o.
5
13​

Answer 1

Resposta:

Explicação passo-a-passo:

Primeiro calcula o valor do cateto oposto ao ângulo $\alpha$

$13^{2} = x^{2} +5^{2}$

169 = $x^{2}$ + 25

$x^{2}$ = 169 - 25

$x^{2}$ = 144

x = $\sqrt{144}$

x = 12 (cateto oposto ao ângulo $\alpha$)

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$sen\alpha =\frac{cateto oposto}{hipotenusa} = \frac{12}{13}$

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$cos\alpha =\frac{cateto adjacente}{hipotenusa} =\frac{5}{13}$

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$tg\alpha =\frac{cateto oposto}{cateto adjacente} =\frac{12}{5 }=2,4}$

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espero ter ajudado!!!