What is the value of log_2 8?
Answer and explanation
Correct answer: B. 3
- Step 1: Ask: 2 to what power gives 8? Step 2. 2^3 = 8, so log_2 8 = 3. Answer: 3. Why not the others: 4: That is one more than the power needed. 2: That is one less than the power needed. 1/3: That is the reciprocal of the power.
Practise more Exponential and logarithmic functions.
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