Question

1- Encontre os valores de x em cada caso.​

Answer 1

Resposta:

Explicação passo-a-passo:

A)

Tg 60 = 8\/3 / x

\/3/2 / 1/2 = 8\/3 / x

\/3/2 . 2 = 8\/3/x

\/3 = 8\/3/x

1 = 8/x

X = 8

_________

B)

Sen 30 = x / 11/2

1/2 = x . 2/11

1/2 = 2x/11

11 = 4x

4x = 11

X = 11/4

__________

C)

Sen 45 = x/6

\/2/2 = x/6

\/2/1 = x/3

3\/2 = x

X = 3\/2

____________

D)

Cos 60 = x/9

1/2 = x/9

9 = 2x

2x = 9

X = 9/2

__________

E)

Cos 45 = x/6

\/2/2 = x/6

\/2/1 = x/3

3\/2 = x

X = 3\/2

_________

F)

Y^2 = (\/10)^2 + (\/2)^2

Y^2 = 10+2

Y^2 = 12

Y = \/12

Y = \/4.\/3

Y = 2\/3

Cos 30= 2\/3 / x

\/3/2 = 2\/3 / x

1/2 = 2/x

X =2.2

X = 4