Ola Marcos
sen(x + y) = sen(x)*cos(y) + cos(x)*sen(y)
sen(x - y) = sen(x)*cos(y) - cos(x)*sen(y)
sen(x + y) + sen(x - y) = 2*sen(x)*cos(y)
2*sen(x)*cos(y) = 2√3/2*√3/2 = 3/2
pronto
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Ola Marcos
sen(x + y) = sen(x)*cos(y) + cos(x)*sen(y)
sen(x - y) = sen(x)*cos(y) - cos(x)*sen(y)
sen(x + y) + sen(x - y) = 2*sen(x)*cos(y)
2*sen(x)*cos(y) = 2√3/2*√3/2 = 3/2
pronto