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5 votes
1.Log(3) 9 + log(3)27

2. Log(2) 8 + log(2) 16

3. Log(10) 80 + log(10) 125

1 Answer

3 votes


log_(3)(9) + log_(3)(27) \\ = 2 + 3 = 5 \\ \\ log_(2)(8) + log_(2)(16) \\ = 3 + 4 = 7 \\ \\ log_(10)(80) + log_(10)(125) \\ = log_(10)(80 * 125) \\ = log_(10)(10000) \\ = 4
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