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Roy123
@Roy123
December 2019
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Calcule o valor de x,y,w e z observando as figuras abaixo:
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nandahrangel07ou8jqk
a)
16/x = cos 30
x = 16/(cos 30)
cos 30 = (√3)/2
x = 16/(√3)/2
= 2x16/√3
= (32√3)/3 racionalizado
x = (32√3)/3
b)
13/26 = sen y
sen y = 1/2
y =arc sen 1/2
y = 30
1 votes
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Lista de comentários
a)
16/x = cos 30
x = 16/(cos 30)
cos 30 = (√3)/2
x = 16/(√3)/2
= 2x16/√3
= (32√3)/3 racionalizado
x = (32√3)/3
b)
13/26 = sen y
sen y = 1/2
y =arc sen 1/2
y = 30