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calculate based on ex a 1 e x 1 e x

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calculate based on ex A= (1+ex)( 1-ex)

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Answer to a math question calculate based on ex A= (1+ex)( 1-ex)

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Utiliser (a+b)(ab)=(a^2-b^2) On obtient (1-e^2x) Ici a=1 ; b=e^x

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