Pregunta
Utilizando la calculadora, halla los ángulos de las siguientes razones trigonométricas :
a.
Sen A = 0, 3456 b.
Cos A = 0, 5555 c.
Tg A = 1, 4572 d.
Cos A = 0, 25 e.
Sen A = 0, 0525
SOLUCIÓN
Hola!
(⌐■_■)
Despejaremos el ángulo de la siguiente manera
a.
Sen A = 0, 3456
<img src="https://tex.z-dn.net/?f=A%20%3D%20sin%5E%7B-1%7D%280.3456%29%5C%5C%5C%5CA%20%5Capprox%2022.46%5E%7Bo%7D" />
b.
Cos A = 0, 5555
<img src="https://tex.z-dn.net/?f=A%20%3D%20cos%5E%7B-1%7D%280.5555%29%5C%5C%5C%5CA%20%5Capprox%2062.51%5E%7Bo%7D" />
c.
Tg A = 1, 4572 <img src="https://tex.z-dn.net/?f=A%20%3D%20tan%5E%7B-1%7D%281.4572%29%5C%5C%5C%5CA%20%5Capprox%2061.71%5E%7Bo%7D" />
d.
Cos A = 0, 25 <img src="https://tex.z-dn.net/?f=A%20%3D%20cos%5E%7B-1%7D%280.25%29%5C%5C%5C%5CA%20%5Capprox%2083.91%5E%7Bo%7D" />
e.
Sen A = 0, 0525 <img src="https://tex.z-dn.net/?f=A%20%3D%20sen%5E%7B-1%7D%280.0525%29%5C%5C%5C%5CA%20%5Capprox%203.34%5E%7Bo%7D" />.