2. ) Show that the cube of any integer is of the form 7k or 7k +1 b) Verify that if an integer is simultaneously a square and a cube, then it must be either of the form 7k or 7k + 1. 拷贝 跳至 Any example of such an integer is simultaneouslya squu A =r2 = s3 64 = 82 = 43 Other numbers?

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