Looks like you just evaluated the summand for the given value of

, whereas the question is asking you to find the value of the sum for the first

terms.
Let

. Then

is the

th partial sum.

happens to be the first term in the series, which is why that box is marked correct:

But the next partial sum is not correct:

and this is not the same notion as the second term (which indeed is 0.75) in the series.
Answer:
6=2 , 12=4, 15=5, 24=8
Step-by-step explanation:
I think the answer is 1.06666666667
Answer:
d. only the first equation is an identity
Step-by-step explanation: