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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
(d) -64

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Solution

Given $(- 2)^{2 \times 3 - 1} = (- 2)^{6 - 1} = (- 2)^{5} = (- 2) \times (- 2) \times (- 2) \times (- 2) \times (- 2) = - 32$

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Similar questions

Question 5

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

The value fo $3^{5} \div 3^{- 6}$ is :
(a) $3^{5}$
(b) $3^{- 6}$
(c) $3^{11}$
(d) $3^{- 11}$

Question 23

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

The value of $(7^{- 1} - 8^{- 1})^{- 1} - (3^{- 1} - 4^{- 1})^{- 1}$ :
(a) 44
(b) 56
(c) 68
(d) 12

Question 4

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

The value fo $\frac{1}{4^{- 2}}$ is
(a) 16
(b) 8
(c) $\frac{1}{8}$
(d) $\frac{1}{8}$

Question 6

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

The value of x, for which the expressions 3x-4 and 2x+1 become equal, is:

(a) -3

(b) 0

(d) 1

Question 6

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

The value of ${(\frac{2}{5})}^{- 2}$ is
(a) $\frac{4}{5}$
(b) $\frac{4}{25}$
(c) $\frac{25}{4}$
(d) $\frac{5}{2}$

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