.png){kind=logo}
2.1.1 1 16 13
2.1.2 1 +...to 25 terms (4+7+10+13+..to 25 terms) =2 (n-1)d] =[2(4)+24(3)] = 1000 a(r-1) -1 2 = 0,9999999
1001.00 = ريو
OR
✓✓ answers
(2)
✓ formula for geometric series
1 22 25 -1 5-1 2 answer for
geometric series
✓ formula for
linear series
[2(4)+24(3)]
2
1000
answer
S30 25 terms of 1 sequence +25 terms of 2nd sequence
S 111 + 248 15+(4+7+10+13+Jo +to 25 terms 25 terms)
(7)
25
2
-1 S 50 1 -1 S=0,999999...+1000 [2(4)+24(3)]
2
S=1001.00
2
Note: If used 50 terms in each series: max 5/7 (answer then is 3876)
Answer only: 6/7 Write out series and then corrõÑÂt answer: full marks
Write out both series and not add. them: 6/7
.png)