1.

In / the/ was/ tiger/ zoo/ roaring/ the section D​

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ANSWER:

Example 3:

Find the SUM:

∑k=150(3k+2)

FIRST find a1 and a50 :

a1=3(1)+2=5a20=3(50)+2=152

Then find the sum:

Sk=k(a1 + AK)2S50=50(5 + 152)2=3925



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