Questions

[hydreichomp]

2 + 5 + 7 + 12 + ... + 31 + 50 =

7/12 - 27/49 =

124 * 142 =

321 * 12 =

35^2 + 36^2 =

25^3 - 24^3 =

The sum of the first ten terms of the sequence 4, 6, 10, 16, 26, 42, ... is

1 + 3 + 8 + 21 + ... + 144 =

[darksaber21]

Use the formula [unparseable or potentially dangerous latex formula] or [unparseable or potentially dangerous latex formula]. There are many ways to do it though, so find one that suits you.

Please refer to the following for the next two:


Again, there are many other posts that describe these, so go searchin' if these don't work well for you.

Fourth one is about the same concept as the third, just less work.

Fifth one:
[unparseable or potentially dangerous latex formula]

Sixth one:
[unparseable or potentially dangerous latex formula]


Seventh one: Refer to for info


Eighth one: Actually happens to be the Fibonacci sequence, but is skipping every other number. I don't know any better idea then to add them up individually:
[unparseable or potentially dangerous latex formula]

[nsguy1350]