alves1250 26/06/2022 Ola May sen²(x) + cos²(x) = 1sen²(x) + 1/16 = 16/16sen²(x) =15/16sen(x) = -√15/4 (negativo no 3° quadrante.
alves1250
Ola May
sen²(x) + cos²(x) = 1
sen²(x) + 1/16 = 16/16
sen²(x) =15/16
sen(x) = -√15/4 (negativo no 3° quadrante
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