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Powers with Positive and Negative Exponents

Question 3In ...

Question

Question 3

In the following question, out of the four options, only one is correct. Write the correct answer:

$3^{- 2}$ can be written as:
(a) $3^{2}$
(b) $\frac{1}{3^{2}}$
(c) $\frac{1}{3^{- 2}}$
(d) $- \frac{2}{2}$

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Solution

Using law of exponents $a^{- m} = \frac{1}{a^{m}}$
So we can write $3^{- 2} a s \frac{1}{3^{2}}$

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Similar questions

Question 3

In the following question, out of the four options, only one is correct. Write the correct answer:

$3^{- 2}$ can be written as:
(a) $3^{2}$
(b) $\frac{1}{3^{2}}$
(c) $\frac{1}{3^{- 2}}$
(d) $- \frac{2}{2}$

Question 9

In the following question, out of the four options, only one is correct. Write the correct answer:

The value of $(- 2)^{2 \times 3 - 1}$ is :
(a) 32
(b) 64
(c) -32
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Question 3

In the following question out of the four options only one is correct, write the correct answer

If 8x-3=25+17x, then x is:

(a) a fraction

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Question 7

In the following question, out of the four options, only one is correct. Write the correct answer:

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(b) $\frac{5}{2}$

(c) $- \frac{5}{2}$

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Question 11

In the following question out of the four options only one is correct, write the correct answer.

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