prove by mathematical induction, that for n
assume that the summation formula is true for n=k
so must be true for n= k+1 ?
so do I put k+1 into the formula, and try and get it match the original? really stuck from this part,
prove by mathematical induction, that for n
assume that the summation formula is true for n=k
so must be true for n= k+1 ?
so do I put k+1 into the formula, and try and get it match the original? really stuck from this part,