Question

Resolver em R as equações:
a) sen x = -√2/2
b) cos x = 1/2
c) tg x = -1

Answer 1

Senx=-√2/2

Senx=sen225°

X=4π/5 +2πk

Cosx=1/2

Cosx=cos60

x=π/3+2πk

tagx=-1

tagx=tag135°

x=4π/3 +πk