If a sigma notation starts at n=0 and ends at 22, how many terms do we have? And

Question

If a sigma notation starts at n=0 and ends at 22, how many terms do we have?
And how many terms do we have when it starts at n=1 and ends at 22?
Do we use the (last term - first term +1) rule for both? If a sigma notation starts at n=0 and ends at 22, how many terms do we have?
And how many terms do we have when it starts at n=1 and ends at 22?
Do we use the (last term - first term +1) rule for both?
And how many terms do we have when it starts at n=1 and ends at 22?
Do we use the (last term - first term +1) rule for both?

Explanation / Answer

If a sigma notation starts at n=0 and ends at 22, then we will have 23 terms.

If a sigma notation starts at n=1 and ends at 22, then we will have 22 terms.

Yes, we use the (last term - first term +1) rule for both.

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