Find the sums given below :

MATHEMATICS · Multi-part · A Level · Mathematics · Sequences and series · Sequences and series

Problem

2. Find the sums given below : (i) 7+1012+14+…+847+10 \frac{1}{2}+14+\ldots+84 (ii) 34+32+30+…+1034+32+30+\ldots+10 (iii) −5+(−8)+(−11)+…+(−230)-5+(-8)+(-11)+\ldots+(-230)

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