Question

Me ajudem, por favor :(

Answer 1

1-

a)

sen 30° = 1/2

cos 30° = (√3)/2

tg 30° = (√3)/3

b)

sen 45° = (√2)/2

cos 45° = (√2)2

tg 45° = 1

c)

sen 60° = (√3)/2

cos 60° = 1/2

tg 60° = √3

2-

cos 60° + sen 30° = 1/2 + 1/2 = 1

3-

a) 1,6

4-

$\frac{\sqrt{2}}{2} +\frac{\sqrt{2}}{2}=\frac{\sqrt{2}+\sqrt{2}}{2}= \frac{2\sqrt{2} }{2}=\sqrt{2}$