whatsupp123
whatsupp123
01.10.2019 • 
Mathematics

18+
• (6, 19.5)
• (5, 17.5)
• (4, 15.5)
• (3, 13.5)
• (2, 11.5)
10+
(1.9.5)
-
1
2
3
4
5
6
7
8 9
n
an=-23+2(n-1)
da,=-2.75 +0.5(n-1)
da, = 9.5+2(n-1)
dan=11+0.5(n-1)

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