若sinα=3sin(π/2-α),则tanα+1/tanα-1=
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若sinα=3sin(π/2-α),则tanα+1/tanα-1=若sinα=3sin(π/2-α),则tanα+1/tanα-1=若sinα=3sin(π/2-α),则tanα+1/tanα-1=正
若sinα=3sin(π/2-α),则tanα+1/tanα-1=
若sinα=3sin(π/2-α),则tanα+1/tanα-1=
若sinα=3sin(π/2-α),则tanα+1/tanα-1=
正确答案是2.
2
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