Aidez moi svp je n'y comprends rien c'est a rendre pour lundi ! Help.... Pergunta de ideia deLafolledu974

Lafolledu974 @Lafolledu974

April 2019 1 57 Report

Aidez moi svp je n'y comprends rien
c'est a rendre pour lundi ! Help

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Merpete EX 1 :
5√2 - 7√2 - 10√10 - 9√3 - 20√3

EX 2 :

A= 2√2 + 5√2 = 7√2
B= 3√5 - 2√5 + 3√5 = 4√5
C= 2√3 - 5√3 + 3√3 = 0
D= √(45x5) = √225 = 15
E= √(63/112) = √(9/16) = 3/4
F= √((45x7)/28) = √(315/28) = √(45/4) = 1/2√45 = 3/2√5

EX 3 :

√2 x √2 = 2 - √2+√2= 2√2 - √200/5 = 2√2 - √8 = 2√2

EX 4 :

(5+√2)²= 25+2+10√2 = 27 + 10√2
(√3-√5)² = 3+5-2√15 = 7 - 2√15
(√3-√7)(√3+√7) = 3 + √21 - √21 - 7 = -4

EX 5 :

H= 2+1+2√2+2+1-2√2 = 6

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Maths 25 Quelqu'un peut il m'aider svp je ne comprends pas

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