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Provar a validade da igualdade
cos4x-sen4x=1-2sen2x
O exercicio é, cosseno à quarta de x menos seno à quarta de x é igual a um menos dois seno ao quadrado de x. Temos de provar a validade da igualdade. Não estou a conseguir resolver
Quando começo a resolver, deparo-me com o problema de não conseguir desenvolver a primeira parcela para simplificar
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Ainda nao ha resposta para essa pergunta, enquanto isso pode-se tornar um usuario premium para atendimento especializado. Saiba mais em escritorios de advocacia online.Answer this Question
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