Question

Fill in the blank .

${(1.2)}^3=\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.$

Answer 1

Step1: Simplify the given expression.

$$\begin{gathered} {\left(1.2\right)}^3={\left(\frac{12}{10}\right)}^3=\frac{12}{10}\times \frac{12}{10}\times \frac{12}{10} \\ =\frac{12\times 12\times 12}{1000} \\ =\frac{1728}{1000} \\ =1.728. \end{gathered}$$

Hence , the required answer is $1.728$