Question

evalua cada exprecion utilizando las razones trigonometricas de los angulos especiales sen30° + cos60°
B tan45° +sec60°
C cos45° - cos30°
D sen30° • cos 30°

Answer 1

A)
sen 30°+cos 60°=1/2+1/2=1

B)
tag 45°+sec 60°=1+2=3

C)
cos 45°-cos 30°=(Raiz 2)/2-(Raiz 3)/2=
=[(Raiz 2)-(Raiz 3)]/2

D)
sen 30°×cos 30°=1/2×(Raiz 3)/2=
=(Raiz 3)/4