Advanced MathEasyNegative exponent that gives a reciprocal
Advanced Math practice question
Which power of 3 is equal to 1/3?
- A. 3⁻¹Correct
- B. 3⁰
- C. 3¹
- D. 3^(1/3)
Answer: A. 3⁻¹
A negative exponent means a reciprocal: 3⁻¹ = 1/3.
Why the other answers are wrong
- B. 3⁰
- 3⁰ = 1.
- C. 3¹
- 3¹ = 3.
- D. 3^(1/3)
- 3^(1/3) is the cube root of 3, about 1.44.
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