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Mathematics, 01.03.2020 23:21 katyym80
Verify ((csc^2x) + (2cscx) -3) / ((csc^2x) - 1) = (cscx+3) / (cscx + 1)
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Verify ((csc^2x) + (2cscx) -3) / ((csc^2x) - 1) = (cscx+3) / (cscx + 1)...
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