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BEYOND PUBLICATION-PROGRESSIONS-EXERCISE
- 2, -6, 18, -54, ………….r = ………….
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- 5/2, 5/4, 5/8, ………… a(n) = …………….
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- 1/(sqrt2), -2, 8/(sqrt2), …………..a(5) = …………….
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- 3, -3^(2), 3^(3), ……….a(6) = …………..
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- In a G.P. a = 81, r = -1/3, a(3) = ……….
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- In a G.P. 25, -5, 1, -1/5, ……..r = …….
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- Sn in A.P.=
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- In AP a(12) = 37, d = 3, then a = …………..
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- Find S7=…. of GP 2, 4, 8, 16,......
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- -1, 1/4, 3/2,…………. . Sum to 10 terms = ………….
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- Find the sums given below: (iii) -5+(-8)+(-11)+……+(-230)
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- Find the sum of : (i) The first 1000 positive intergers .
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- 16 + 11 + 6 + ……….23 terms = …….
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- Identify the number of 3 digit number that divisible by 7.
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- In an AP a(1) = -4, a(6)= 6 then a(2) = …….
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- In the above problem a5=…
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- In the formula a(n) = 3.6, a = - 18.9, d = 2.5, n = ……………
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- 5, 1, -3, -7, ……….a(10)= ……………..
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- 1/4, (-1)/4, (-3)/4, (-5)/(4), d = ……….
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- If 4, x , 16 are in G.P. then x = ………..
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