Question

Calcule
A) sen π/3 + cos π/3
B) cos π/3 - sen π/6
C) cos π/4 - sen π/4
D) (sen π/3)ao quadrado + (cos π/3)ao quadrado

Answer 1

a)

$\mathsf{\sin(\dfrac{\pi}{3)}+\cos(\dfrac{\pi}{3})=\dfrac{\sqrt{3}+1}{2}}$

b)

$\mathsf{\cos(\dfrac{\pi}{3})-\sin(\dfrac{\pi}{6})=0}$

c)

$\mathsf{\cos(\dfrac{\pi}{4})-\sin(\dfrac{\pi}{4})=0}$

d)

Relação Fundamental da Trigonometria

$\boxed{\boxed{\mathsf{{\sin}^{2}(x)+{\cos}^{2}(x)=1}}}$

$\huge\mathsf{{\sin}^{2}(\dfrac{\pi}{3})+{\cos}^{2}(\dfrac{\pi}{3})=1}$