Answer:
D.
Step-by-step explanation:
Look for the closed circle with the arrow pointing to the right on this one.
B. Neither/nor is the answer
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
Answer:(4.5, 6.5)
step-by-step explanation: this is the formular for finding a midpoint of a line.
- <u>midpoint=x1+y1?|/2 ,x2+y2/2</u>