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By Taking Three Different Values Of N Verify the Truth of the Following Statement: If N Is Odd, Then N3 Is Also Odd. - Mathematics

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Question

By taking three different values of n verify the truth of the following statement:

If n is odd, then n3 is also odd.

Sum

Solution

Let the three odd natural numbers be 3, 9 and 27.
Cubes of these numbers are: 

\[3^3 = 27, 9^3 = 729, {27}^3 = 19683\]
By divisibility test, it is evident that
\[27, 729 \text{ and } 19683\] are divisible by 3.
Thus, they are odd.
This verifies the statement.
 

 

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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 22.2 | Page 9

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