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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