Evaluate :
iv) $(0.4)^{3}$

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Solution

Step: Evaluate
Given: $(0.4)^{3}$
$\Rightarrow 0.4 \times 0.4 \times 0.4$
$\Rightarrow 4 \times 4 \times 4$
$= 64$
$0.4$ has $1$ decimal place and is multiplied thrice. So, their product will have $1 + 1 + 1 = 3$ decimal places.
$∴ (0.4)^{3} = 0.064$

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