A perfect cube of a number having 0 at its unit place ends with ____ zeros. options (a) 1 (b) 2 (c) 3 (d) 4
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37
Answer:
1 is the answer Hilo it will help you dear
Answered by
5
Answer :- (c) 3 .
Explanation :-
Let us take some example by taking number having 0 at its unit place .
(10)³
→ 10 * 10 * 10
→ 1000 = 3 zeros in last .
(20)³
→ (2 * 10)³
→ 2³ * 10³
→ 8 * 1000
→ 8000 = 3 zeros in last .
(80)³
→ (8 * 10)³
→ 8³ * 10³
→ 512 * 1000
→ 512000 = 3 zeros in last .
therefore, we can conclude that, A perfect cube of a number having 0 at its unit place ends with (c) 3 zeros .
Extra :-
- A perfect cube of a number having two zeros in last ends with 6 zeros .
- A perfect cube of a number having three zeros in last ends with 9 zeros .
- A perfect cube of a number having n zeros in last ends with 3n zeros .
Learn more :-
prove that √2-√5 is an irrational number
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