Помогите.. очень срочно

Question

Помогите.. очень срочно

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Answer 1

1. 
2. log5(25) = 2
3. log12(16) + log12(9) = log12(144) = 2
4.1 x = 4 " alt=" 5^{x-2} = 25 => x = 4 " align="absmiddle" class="latex-formula">
4.2
       x = 4" alt=" x-4 = 0 => x = 4" align="absmiddle" class="latex-formula">
4.3  x = 0

Comments

В 4.2 уравнение = 1 (3 в степени x-4 = 1)