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Exercicicios de trigonometria na circunferencia
De o sinal de:
a) sen (-pi/2)
b) sen (-5pi/4)
c) sen (10pi/3)
d) sen 850º
e) sen 3816º
Não sei é a maneira como estou digitando essa pergunta na internet, mas não encontro nenhuma resposta objetiva para as questões acima. E preciso com urgência da resolução desta, pois elas são para um trabalho de dependência..
Desde já, obrigada.
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