25 = 32 =⇒ log2 32 = 5. (a) 42 = 16 =⇒ log4 16 = 2 ... (j) 2 log 4 + 2 log 3 − 5 log 2 = log 16 + log 9 − log 32 = log 16×9. 32. = log 9.
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