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Evaluate the Following: { ( 5 2 + 12 2 ) 1 / 2 } 3 - Mathematics

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Question

Evaluate the following: 

\[\left\{ ( 5^2 + {12}^2 )^{1/2} \right\}^3\]

 

Sum

Solution

To evaluate the value of the given expression, we can proceed as follows:

\[\left\{ \left( 5^2 + {12}^2 \right)^{1/2} \right\}^3 \]
\[ = \left\{ \left( 25 + 144 \right)^{1/2} \right\}^3 \]
\[ = \left\{ \left( 169 \right)^{1/2} \right\}^3 \]
\[ = \left\{ \sqrt{\left( 169 \right)} \right\}^3 \]
\[ = \left\{ \sqrt{13 \times 13} \right\}^3 \]
\[ = \left\{ 13 \right\}^3 \]
\[ = 13 \times 13 \times 13 = 2197\]

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Chapter 4: Cubes and Cube Roots - Exercise 4.1 [Page 9]

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RD Sharma Mathematics [English] Class 8
Chapter 4 Cubes and Cube Roots
Exercise 4.1 | Q 17.1 | Page 9

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