Practice Negative Exponent Law (3.7) - Laws of Exponents - IB 10 Mathematics

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9 questions

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6 questions · about 4 min · pass mark 70%. Hints available.
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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Simplify $3^{-2}$ .
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Remember the reciprocal rule.
Question 2.
Express $a^{-4}$ in positive exponents.
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Convert it to a reciprocal.
3Question 3.
What does $a^{-n}$ equal?
- $a^n$
- $\\frac{1}{a^n}$
- $-a^n$
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Think about how negative signs transform exponents.
4Question 4.
Is $5^{-2} = \frac{1}{5^2}$ true or false?
- True
- False
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Reciprocal always helps with negatives!
Question 5.
Simplify $\frac{3^{-4} + 4^{-2}}{2^{-3}}$ .
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Convert each term to positive exponents first, and work through the operations carefully.
Question 6.
Evaluate the expression $x^{-1/2}$ in terms of radicals.
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Recall how to express exponent fractions in radical form.

5 more questions in this section. Enroll free to practise them all.