Алгебра
Английский
Биология
География
Геометрия
История
Русский
Обществознание
Физика
Химия
Информатика
Литература
МатематикаВопрос:
7. log2log3x= 1
Ответ:
Решим уравнение log2log3x = 1
log3x = 21
log3x = 2
x = 32 = 9
Ответ: 9
Похожие
- 1. log2x = 3
- 2. log3x = -1
- 3. logs(2x) = 1
- 4. log7x = 0
- 5. log2(-x)=-3
- 6. Ig(x-1)2 = 0
- 8. log3log2log2x = 0
- 9. log2log3x² = 2
- 10. lgx = 2-Ig5
- 11. Igx-lg11=lg19-1g(30-x)
- 12. log1 10 2+x=1081x+1 5 5
- 22. 0,5lg(2x-1)+lg√x-9=1
- 13. log3(x2 – 4x + 3) – log3(3x+21) 23. 1g(x + 6)-21g(2x-3) = = 2-1g25
- 14. log2(9-2*) = 3-x
- 15. log3(x - 2) + log3x = log38
- 16. 1g(x-9) + 21g/2x-1=2
- 17. logx-19 = 2
- 18. logalog log√x =
- 19. log2x + 3 = 2log2x²
- 20. lg²x³-10lgx + 1 = 0
- 21.log4(x + 3)-log4(x-1) = = 2-log48
- 24.5-4lgx+1+lgx=3
- 25. 2log2x 1 log√2x + log₁ x = 9
- 26. log3x + log9x + log27X = 5,5
- 27. 2log2log2x + + log log2(2√2x) = 1
- 28. logx2 + log2x = 2,5
- 29. log1-x3-log-x2 = 0,5
- 30. logx+1(x²-3x + 1) = 1
- 31. xlgx = 100x
- 32. x log,x + 2 = 8
