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Select the equivalent expression. \( a^{-1}=? \) Choose 1 answer: (A) \( -a \) (B) \( \sqrt{a} \) (C) \( \frac{1}{a} \)

Ask by Kelly Chadwick. in South Africa
Feb 13,2025

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The equivalent expression is \( \frac{1}{a} \).

Solución

The expression a⁻¹ is equivalent to 1/a. Therefore, the correct answer is (C) 1/a.

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The expression \( a^{-1} \) is actually just another way of saying "one over \( a \)." So if you see \( a^{-1} \), you can rewrite it as \( \frac{1}{a} \). That makes option (C) the correct answer! So, remember this little exponent trick—it helps simplify a lot of expressions. Whether you're working with basic numbers or more complex equations, understanding negative exponents is like having a superpower in math!

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