Question

EQUENCES AND SERIES
EXERCISE 9.3
1. Find the sum of indicated number of terms in each of the following ar
progressions :
(i) 2, 4, 6, 8, ......; 100 terms (ii) = 0.5, - 4:0, - 1-5, ...., 10 terms
1 3
(iii) - 1,
81 terms
(iv) x + y, x - y, x - 3y, ......, 22 terr
4'2
2. (i) Find the sum of the series 2 + 5 + 8 + ...... + 182
2-4+6-8+ 10 - 12 + ......​

Answer 1

Answer:

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