Question

b) Siendo cos a
a = fyo<a< 5, calcular cos
os(a +5)
Porfaa​

Answer 1

• $\cos( \alpha ) = \frac{4}{5} = 0.8$
• $0 < \alpha < \frac{\pi}{2}$
• $\alpha = arc \cos(0.8)$
• $\alpha = 0.6435$
• $\cos( \alpha + \frac{\pi}{6} ) = \cos(1.117) = 0.4383$