Question

resolver esses exercícios de trigonometria​

Answer 1

a) cos 30° = 16/x

√3/2 = 16/x

x√3 = 32

x = 32/√3

x = 32√3/3

c) sen 60° = w/18

√3/2 = w/18

2w = 18√3

w = 9√3

d) cos 45° = 20/z

√2/2 = 20/z

z√2 = 40

z = 40/√2

z = 40√2/2

z = 20√2