1.Вычислить:
a) log1/2 2; б)log4 32; в) log2 * log2 16; г)log4 5+ log4 25
2.Упростить выражение
а)log2 16+log2 8 -log2 2
б)log3 16- log3 48 +log3 27
3.Сравнить выражение
а)log 2 128 и log2 32;
б)lg 0.9 и lg (0,9)²;
в)lg 48 - lg 9 и lg 21 - lg 4;
г)log4 11+ log4 9 и log4 (11+9).
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