by darksaber21 » Tue Jul 31, 2012 1:39 pm
You did it right, but when you do that, you add one to the overall number.
Let's use an example:
[unparseable or potentially dangerous latex formula]
To find the number of terms, just do this:
[unparseable or potentially dangerous latex formula]
Where [unparseable or potentially dangerous latex formula] is the last term, [unparseable or potentially dangerous latex formula] is the first term, and [unparseable or potentially dangerous latex formula] is the absolute difference between the numbers.
So in this case, since the first term is one and the last term is 41, and the difference is 4:
[unparseable or potentially dangerous latex formula]
So 11 terms.
Reason why this works is due to the fact that you are basically taking out the first term with the [unparseable or potentially dangerous latex formula] part, so the +1 is supposed to counter that.
So using your example:
[unparseable or potentially dangerous latex formula]
Now I know the stakes, and I'm willing to show what I gots. I will see you all at state for the first and final time, so let's end the year with a bang! :)
MTHS - Class 5A, District VII, Region I