There are 90 fith-grade students going on a feild trip. Each student gives the teacher $9.25 to cover admission to the theater a
1 answer:
You might be interested in
Let
In order to prove this by induction, we first need to prove the base case, i.e. prove that P(1) is true:
So, the base case is ok. Now, we need to assume and prove
.
states that
Since we're assuming , we can substitute the sum of the first n terms with their expression:
Which terminates the proof, since we showed that
as required