Question: 4. Find the exact sum of each arithmetic series using formulas. (a) -18-11-4+ ...+80 (b ) ;tit + .+ 100 (c) In 2 + In

 4. Find the exact sum of each arithmetic series using formulas.

4. Find the exact sum of each arithmetic series using formulas. (a) -18-11-4+ ...+80 (b ) ;tit + .+ 100 (c) In 2 + In 4 + In8+ ... + In 1024 (d) Ine + 4+7 + ...+97 5. Find the exact sum of each geometric series using formulas. (a)1+ 1 1 1 V2. 7~ +...+ N 412 k - 1 ( b ) K=1 (c) 3 - 1.5 + 0.75 - 0,375 + ...+ 0.046875 . . (d) Find the sum of the first 6 terms of this sequence: 1+ V2+ 2+

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