Question

Помогите с логарифмами
можно только ответы

Answer 1

1)  log₁/₃ log₃ 27 - log₃ ² log₁/₇ (1/343) = log₁/₃ log₃ (3)³ - log₃ ² log₁/₇ (1/7)³ =
=  log₁/₃ 3 log₃ 3 - log₃ ² 3 = - log₃ 3 - 1 = - 1 - 1 = - 2
2)  log₁/₂ 18 + log₂ 72 + 5^(log₅ 3) = -  log₂ 18 + log₂ ( 18*4) + 3 = 
= -  log₂ 18 + log₂ 18  + log₂ (2)² + 3 = 2 log₂ 2 + 3 = 2 + 3 = 5