Express 12 cube as the sum of odd natural number
Answers
Answered by
16
12^3 =(5+7)^3
(5+7)^3=5^3+7^3+3^5^7(5+7)
= 125+343+525+735
In this way cube of 12 may be expressed as the sum of odd numbers
155 Views · Answer requested by
there are a lot and I mean a lot of ways to do that,
easiest would be the following,
12^3=1728
you could divide 1728 by 2 giving
864,
so 864 + 864=12^3
add 1 and subtract 1 to left hand side
(864–1) + (864+1) =12^3
863 + 865 =12^3
so there you have it.
P.S. my way of doing it
(Using ramanujan’s number, since I remember that everytime i hear 12^3 or any of the others)
12^3 +1^3 = 9^3 + 10^3
12^3 +1 = 729 +1000
12^3 = 729 + (1000–1)
12^3 = 729 + 999
Answered by
5
Answer:
hope it helps you mate all the best
Attachments:
Similar questions