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Use Euclid's division lemma to show …

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Use Euclid's division lemma to show that cube of any positive integer is of the form 9m , 9m +1 or 9m +8

Posted by Bittu Nayak 7 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Pratiksha Kiran 7 years, 5 months ago

You know that any +ve integer is of the form ,3m or 3m+1.now let x be any +ve integer and b=3 .therefore you have 3 cases 3m,3m+1and 3m+2.now cube all the three cases both the sides one after another and then write them in the form 9m,9m+1and9m+8.

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CBSE > Class 10 > Mathematics