Question

calcular o valor de seno, cosseno e tangente do ângulo A​

Answer 1

Explicação passo-a-passo:

=> Seno

$\sf sen~\alpha=\dfrac{cateto~oposto}{hipotenusa}$

$\sf sen~\alpha=\dfrac{3}{5}$

$\sf \red{sen~\alpha=0,6}$

=> Cosseno

$\sf cos~\alpha=\dfrac{cateto~adjacente}{hipotenusa}$

$\sf cos~\alpha=\dfrac{4}{5}$

$\sf \red{cos~\alpha=0,8}$

=> Tangente

$\sf tg~\alpha=\dfrac{cateto~oposto}{cateto~adjacente}$

$\sf tg~\alpha=\dfrac{3}{4}$

$\sf \red{tg~\alpha=0,75}$