Question 8
Indices and LogarithmsIf log2 x = 2, evaluate logx 128.
- A.7
- B.2
- C.7/2
- D.2/7
Show the answer and explanation
Answer: C (7/2)
Explanation
x = 2² = 4. log₄ 128 = log₂ 128 / log₂ 4 = 7/2.
If log2 x = 2, evaluate logx 128.
Answer: C (7/2)
x = 2² = 4. log₄ 128 = log₂ 128 / log₂ 4 = 7/2.