Question

Calcule o valor de x.​

Answer 1

Resposta:

Explicação passo-a-passo:

Lei dos senos

a)

X/sen x = y / sen y

X/ sen 60 = 5\/2 / sen 45

X / \/3/2 = 5\/2 / \/2/2

X. 2 / \/3 = 5\/2 . 2 / \/2

2x / \/3 = 10 \/2 / \/2

2x / \/3 = 10

2x = 10 \/3

X = 10 \/3 / 2

X = 5 \/3

_____________

B)

8/sen 45 = x / sen 30

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

8. 2/ \/2 = x . 2

16/ \/2 = 2.x (:2)

8 / \/2 = x

X = 8 / \/2 . \/2 / \/2

X = 8\/2 / 2

X = 4 \/2