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( e x ) ′ = e x

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  ( e x ) ′
= lim Δx→0 e x+Δx − e x Δx
= lim Δx→0 e x ( e Δx −1 ) Δx
= e x { lim Δx→0 e Δx −1 Δx }
= e x
( ∵ lim Δx→0 e Δx −1 Δx =1 )

詳しくはPCサイトを参照のこと。

 

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戻る

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