Question 3

$x$ is a non-zero rational number. Product of the square of $x$ with the cube of $x$ is equal to the
(a) second power of $x$
(b) third power of $x$
(c) fifth power of $x$
(d) sixth power of $x$

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Solution

Square of x= $x^{2}$
Cube of x= $x^{3}$
Product of square with the cube of $x$ is

$\Rightarrow x^{2} \times x^{3} = x^{2 + 3} = x^{5}$
i.e. fifth power of $x$ .

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Question 14

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

If x be any non-zero integer, then $x^{- 1}$ is equal to:
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