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1. ⁶log 9 + ⁶log 4 =
= ⁶log (9x4)
= ⁶log 36
= ⁶log 6²
= 2. ⁶log 6
= 2 (1)
= 2
2. ³log 54 - ³log 2 =
= ³log (54 /2)
= ³log 27
= ³log 3³
= 3. ³log 3
= 3 (1)
= 3
3. ³log 12 x ¹²log 3 =
= ³log 3
= 1