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Evaa02100
@Evaa02100
April 2019
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Bonjour j'ai cet exercice à finir pour demain mais je n'arrive pas à trouver les coefficients,merci de votre aide
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caylus
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Bonjour,
la courbe passe par (1,e)
=>(a*1+b)*e^(-1+2)=e
=>a+b=1
y'=ae(-x+2)-(ax+b)e^(-x+2)
pour x=1 alors y'=e=>a*e-(a+b)*e=e=>a*e-e=e=>a=2
et b=1-2=-1
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Bonjour,la courbe passe par (1,e)
=>(a*1+b)*e^(-1+2)=e
=>a+b=1
y'=ae(-x+2)-(ax+b)e^(-x+2)
pour x=1 alors y'=e=>a*e-(a+b)*e=e=>a*e-e=e=>a=2
et b=1-2=-1