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問答題

求函數(shù)y=arctanx及y=arccotx的導數(shù).求函數(shù)y=arctanx及y=arccotx的導數(shù).

答案： p>求函數(shù)y=arctanx及y=arccotx的導數(shù)．

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In the word ’receive’, the morpheme ’－ceive’ isprefix.B．suffix.C．bound root.D．free rooIn the word ’receive’, the morpheme ’-ceive’ isprefix. B．suffix. C．bound root. D．free root.

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