Matematică, întrebare adresată de rafaelaprintes, 9 ani în urmă

VA ROOOOOGGG AM NEVOIE ACUM URGENTTTTTTT

Anexe:

Răspunsuri la întrebare

Răspuns de samsunggenius200
0
a) 2.718282x=x+1/2x1
5.436564x22.718282x=x+15.436564x22.718282x(x+1)=x+1(x+1)
5.436564x23.718282x−1=0x=−b±b24ac/2a
x=(−3.718282)±(−3.718282)24(5.436564)(−1)/2(5.436564)x=3.718282±√35.571877/10.873128
x=0.8904979671296681,0.20655825815171802
x=0.890498x=0.206558

b) 
(2x−1)(2.718282)x>1.55.436564x22.718282x>1.5
5.436564x22.718282x=1.55.436564x22.718282x−1.5=1.5−1.5
5.436564x22.718282x−1.5=0x=−b±b24ac/2a
x=(−2.718282)±(−2.718282)24(5.436564)(−1.5)/2(5.436564)x=2.718282±√40.008441/10.873128x=0.8317298028010298,0.33172980280102976
x<0.33173
−0.33173<x<0.83173
x>0.83173

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