Use the principle of mathematical induction to show that the mathematical statement is true for all natural numbers n.Sn: 3 +  +  + . . . +  = 4

What will be an ideal response?


S1:4
 4
 3 = 3 ?
Sk: 3 +  +  + . . . +  = 4
Sk+1: 3 +  +  + . . . +  = 4
We work with Sk. Because we assume that Sk is true, we add the next consecutive term, namely  to both sides.

3 +  +  + . . . +  +  = 4 + 
3 +  +  + . . . +  = 4 -  + 
3 +  +  + . . . +  = 
3 +  +  + . . . +  = 
3 +  +  + . . . +  =  - 
3 +  +  + . . . +  = 4 - 
3 +  +  + . . . +  = 4
We have shown that if we assume that Sk is true, and we add  to both sides of Sk, then Sk+1 is also true. By the principle of mathematical induction, the statement Sn is true for every positive integer n.

Mathematics

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