`x=acottheta,y=bcosectheta` find ` dy/dx`

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`x=acottheta,y=bcosectheta` find ` dy/dx`
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`x=acottheta,y=bcosectheta` find ` 0:02:15

`x=acottheta,y=bcosectheta` find ` dy/dx`

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