ICE Special Agent Exam Prep

Category - Math - Hard

Find the value of log3 (9X27X81)
  1. 3
  2. 9
  3. 27
  4. 81
Explanation
Answer B: The logarithm of a product is equal to the sum of the logarithms of the individual number. The logarithm of a number, the number being same as the base is 1. log3 (9X27X81) = log3 9 + log3 27 + log3 81 = 2 log3 3+ 3 log3 3 +4 log3 3 = 2 + 3 + 4 = 9

Key takeaway: While learning logarithm pay more attention to the basic rules of logarithm and develop an understanding of the range of the values of logs.
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