بــــــــســــم الله الرحــــــمـــــــان الــــرحـــــيــــم

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 LES IDENTITES REMARQUABLES

(a+b)2=a2+2ab+b2

(a-b)2=a2-2ab+b2

(a+b)(a-b)=a2- b2

(a+b)3=a3+3a2b+3ab2+b3

a3-b3=(a-b)(a2+ab+b2)

a3+ b3=(a+b)(a2-ab+b2)

PYTHAGORE

ABC est un triangle rectangle en A

   BC2 = AB2 + AC2

THALES

KHAWARISMI

VARIGNON

CHASLES