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解:y=e^(tanx)²;y'=e^(tanx)²;*(tanx)²;' =e^(tanx)²;*2tanx(tanx)' =e^(tanx)²;*2tanx(secx)²;=2tanx(secx)²;e^(tanx)²;=2sinx(secx)³;e^(tanx)…
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