yrr Posted February 2 Share Posted February 2 Salut, Pour la correction de cet item, je n'arrive pas à comprendre ou est passé le 2i. Est ce que c'est parce que: i²=-1 ? merci Quote Link to comment Share on other sites More sharing options...
Solution davidd Posted February 2 Solution Share Posted February 2 (edited) C'est 2i*2i = -4 or la c'est au denominateur donc ils ont factoriser par -1/4 Donc oui tu as tout bon Edited February 2 by davidd Quote Link to comment Share on other sites More sharing options...
yrr Posted February 2 Author Share Posted February 2 Just now, davidd said: C'est 2i*2i = -4 or la c'est au denominateur donc ils ont factoriser par -1/4 Donc oui tu as tout bon merci Quote Link to comment Share on other sites More sharing options...
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