Show that cube of any positive integer is of the form 4m , 4m+1,4m+ 3 . For some integer m . A clear explanation is needed . Spam answers will be reported.
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Show that the cube of any positive integer is of the form 4m, 4m + 1 or 4m + 3 for some integer m. We will use the formula (a+b)3=a3+b3+3ab(a+b) on RHS and finally generalize the cases of r. Complete step by step answer: Let us first assume a number 'a' be any arbitrary positive integer
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