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paulinholima1's Profile
Star Rating: [2 
]
Member Since: May 01, 2014
Total # Questions Provided: 1
Total # Answers Provided: 0
]
Member Since: May 01, 2014
Total # Questions Provided: 1
Total # Answers Provided: 0
mai
1
2014
Sendo cossec(x)/sec(x)+sec(x)/cossec(x)=5
(FURG-RS) Sabendo que cossec(x)/sec(x)+sec(x)/cossec(x)=5, qual é o valor de(sen(x)+cos(x))^2. A resposta desse problema é 7/5. Procurei ver se tem resposta no Google, mas não consegui encontrar...
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