Question

Does Anyone know this???

Answer 1

You can try this for any value of n, if you find one instance that is false, the statement is false.

Let's take n=5, then the following should be true:

F₇ is the sum of the first 5 terms.
F₇ = 13, and 1+1+2+3+5 = 12; they're different.

So the statement is false.