ա) S2025 = 6 (-1 — 1)/(-1 -1) = 6
բ) S2026 = 6(1 — 1)/(-1 — 1) = 0
ա) q = 27/-81 = — 1/3
S8 = -81 ((-1/3)8 — 1)/(-1/3 — 1) = — 1640/27
բ) q = 1/2 : 1 = 1/2
S8 = 1 ((1/2)8 — 1)/(1/2 — 1) = 255/128
գ) q = 2/(-1) = -2
S8 = -1 (256 — 1)/(-2 — 1) = 85
դ) q = -25/-125 = 1/5
S8 = -125 (1/390625 — 1)/(1/5 — 1) = — 97656/625
a1 = 5000
5000 x 40/100 = 2000
a2 = 5000 + 2000 = 7000
q = 7000/5000 = 7/5
S6 = 5000 ((7/5)6 — 1)/(7/5 — 1)
S6 = 51002000/625 = 81619.2
a1 = 50000
a2 = 45000
q = 45000/50000 = 45/50 = 9/10 = 0.9
S4 = 50000 (0.94 — 1)/(0.9 — 1) = -17,195/-0.1 = 171,950
Վ — 1000000 x 10/100 = 100000
Լ — 1000000 x 20/100 = 200000
ա)
Վ — 100000 + 1000000 = 1100000
Լ — 200000 + 1000000 = 1200000
___
բ) 1100000 x 10/100 = 110000
1100000 + 110000 = 1,210,000
1210000 — 1200000 = 10000
Ալիկ՝
a1 = 5
5 x 10/100 = 0.5
a2 = 5 + 0.5 = 5.5
q = 5.5/5 = 1.1
Վիգեն՝
7 x 7 = 49
Ալիկ՝
S7 = 5 (1.17 — 1)/(1.1 — 1) = 4.75/0.1 = 47.5
49 — 47.5 = 1.5
Պատ.՝ Վիգեն, 1.5 կմ — ով:
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