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Ответ: 1. 48; 2. 147; 3. 3.
12^(1+log12 4) = 12^1 * 12^(log12 4) = 12 * 4 = 48
7^(2+log7 3) = 7^2 * 7^(log7 3) = 49 * 3 = 147
log2 5 + log2 8\5 = log2 (5 * 8\5) = log2 8 = lg2 2^3 = 3 * log2 2 = 3 * 1 = 3
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Answers & Comments
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2.
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Ответ: 1. 48; 2. 147; 3. 3.
Verified answer
12^(1+log12 4) = 12^1 * 12^(log12 4) = 12 * 4 = 48
7^(2+log7 3) = 7^2 * 7^(log7 3) = 49 * 3 = 147
log2 5 + log2 8\5 = log2 (5 * 8\5) = log2 8 = lg2 2^3 = 3 * log2 2 = 3 * 1 = 3