已知0〈α〈π/2,那么log(sinα)(1/(1-cos^2α))=? = =RT
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已知0〈α〈π/2,那么log(sinα)(1/(1-cos^2α))=? = =RT
已知0〈α〈π/2,那么log(sinα)(1/(1-cos^2α))=? = =RT
已知0〈α〈π/2,那么log(sinα)(1/(1-cos^2α))=? = =RT
log(sinα)(1/(1-cos^2α))=log(sinα)(1/(sin^2α)=log(sinα)(sinα)^(-2)==-2
已知0〈α〈π/2,那么log(sinα)(1/(1-cos^2α))=? = =RT
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