Explicación paso a paso:
2 × sen(x) × cos(x) = cos(x)
2 × sen(x) = cos(x) / cos(x)
2 × sen(x) = 1
sen(x) = 1/2
x = sen^-1 (1/2)
x = 30
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Explicación paso a paso:
2 × sen(x) × cos(x) = cos(x)
2 × sen(x) = cos(x) / cos(x)
2 × sen(x) = 1
sen(x) = 1/2
x = sen^-1 (1/2)
x = 30