9*(6/5)^x-5*(5/6)^(x-1)-3=0. Created by YesKinder. algebra-ru

6)^(x-1)-3=0...

ВладимирБ

Verified answer

Решение смотри в приложении

1 votes Thanks 1

oganesbagoyan

Verified answer

9*(6/5)^x-5*(5/6)^(x-1)-3=0 ;
9*(6/5)^x-5*(5/6)^x*(5/6)^(-1) -3=0 ; * * * (5/6) ^(-1) =1 /(5/6)^1 =6/5 * * *
9*(6/5)^x-6*(5/6)^x -3=0 ;
3*(6/5)^x-2*(5/6)^x -1=0 ;
замена переменной: t =(5/6)^x >0 ⇒ (6/5)^x =1/t .
3/t -2t -1 =0 ;
2t² +t -3 =0 ;
t₁= (-1-5)/(2*2) = -3/2 (не корень исходного уравнения)
t₂= (-1+5)/(2*2) = 1 ⇒ (5/6)^x =1⇔ (5/6)^x =(5/6)⁰ ⇒ x =0.

ответ : 0.

0 votes Thanks 0

Answers & Comments

Verified answer

Verified answer

sostavte uravneniya reakcij ca3po42 gtp gtp2o5 gth3po4 gtna3po4 gta

chto hotel rasskazat avtor ruki u mamy byli udivitelnyesuhie chut shershaven

English! Write out the sentences from the text!...

pomogite pozhalujsta reshite1373f8a28bf97276eb09197f2518c21 48971

kakova sila ottalkivaniya mezhdu protonami yadra geliyaotvet1138 n mne nuzhno r

3 zadanie po himii reshite

kakovy energiya svyazi i udelnaya energiya svyazi yadra vodoroda 3 tritiya

pomogite pozhalujsta reshit747cd8003144d0762b4d3cde7eb571a8 61500

pomogite s domashkoj02891cf89f6ff25fdf39a11a32525c76 62253

pomogite s domashnim zadaniem2d8662c9b27a14136d387b7be5b020ab 60540

рекомендуемые вопросы

Helpful Links

Helpful Social