Log4 x -1+log4 (10-x)=0. Created by lenuska0best0. matematika-ru

Log4 x -1+log4 (10-x)=0...

lenuska0best0 @lenuska0best0

August 2022 1 7 Report

Log4 x -1+log4 (10-x)=0

Answers & Comments

Удачник66

Verified answer

Область определения логарифмов
{ x > 0
{ 10 - x > 0
0 < x < 10
Сумма логарифмов равна логарифму произведения
log4 (x(10-x)) = 1 = log4 4
x(10 - x) = 4
x^2 - 10x + 4 = 0
D/4 = 25 - 4 = 21
x1 = 5 - √21
x2 = 5 + √21

0 votes Thanks 0

Answers & Comments

Verified answer

2=sinx...

iz s3 vtoroe uravnenie

zadachu pro barzhu pozhalujsta

3...

log3 (4^x + 152^x + 27) -2log3 (4*2^x-3)=0...

2 chemu raven hb368a7bb22cb6adde4e800e12b560d18 34234

chemu raven h pri sinx sqrt2

рекомендуемые вопросы

Helpful Links

Helpful Social

Answers & Comments

Verified answer

2=sinx...

iz s3 vtoroe uravnenie

zadachu pro barzhu pozhalujsta

3...

log3 (4^x + 15*2^x + 27) -2*log3 (4*2^x-3)=0...

2 chemu raven hb368a7bb22cb6adde4e800e12b560d18 34234

chemu raven h pri sinx sqrt2

рекомендуемые вопросы

Helpful Links

Helpful Social

log3 (4^x + 152^x + 27) -2log3 (4*2^x-3)=0...