Розв’язати рівняння (х+1)/(х^2+х-1) + (х^2+х-1)/(х+1) = 2. Created by anika09. matematika-ru

(х+1) = 2...

July 2022 1 5 Report

Розв’язати рівняння (х+1)/(х^2+х-1) + (х^2+х-1)/(х+1) = 2

Answers & Comments

Gerren (х+1)/(х^2+х-1) + (х^2+х-1)/(х+1) = 2
(х+1)/(х^2+х-1)=a
(х^2+х-1)/(х+1)=1/a
a+1/a=2
a^2+1=2a
a^2-2a+1=0
(a-1)^2=0
a=1
(х+1)/(х^2+х-1)=1
(x+1-x^2-x+1)/(x^2+x-1)=0
2-x^2=0
x^2=2
x=+-√2

2 votes Thanks 2

anika09 Дуже дякую. Чому я не догадалась? шкода за себе. Дякую.

teplohid yide z kiyeva do zaporizhzhya protyagom dvoh dib povertayetsya protyagom t

Answer

anika09 July 2022 | 0 Ответы

z mist a ta v nazustrich odin odnomu odnochasno viyihali dva velosipedisti pershij

Answer

anika09 November 2021 | 0 Ответы

cholovik shtovhaye vagonetku z siloyu napryamlenoyu vniz pid kutom 45 gradusiv yaku na

Answer

Answers & Comments

teplohid yide z kiyeva do zaporizhzhya protyagom dvoh dib povertayetsya protyagom t

z mist a ta v nazustrich odin odnomu odnochasno viyihali dva velosipedisti pershij

h 1a0d1bc6c468b99e463c7455c09bc3229 29265

s na skolko smestitsyaplovec plyvya perpendikulyarno k beregu

kakoj put projdyot velosiped esli on sdelaet odin oborot pedali izvestno chto

cholovik shtovhaye vagonetku z siloyu napryamlenoyu vniz pid kutom 45 gradusiv yaku na

рекомендуемые вопросы

Helpful Links

Helpful Social