Find the sum of the first 22 terms of the AP:8,3,-2,….?

Top 1 Answers

A few days ago

Maverick

Favorite Answer

Easiest way is to brute force it (do it on your calculator if you have an advanced one!)

difference is -5 each time, so numbers are

8, 3, -2, -7, -12, -17, -22, -27, -32, -37, -42, -47, -52, -57,

-62, -67, -72, -77, -82, -87, -92, -97

Now add them together to get your answer (i’ll let you do that!

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