Найдите сороковой член RATS-последовательности, которая начинается с 2022
Найдите сороковой член RATS-последовательности, которая начинается с 2022
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Для того чтобы найти 40-й член RATS-последовательности, начинающейся с 2022, используем формулу для вычисления n-го члена:Rn = R(n-1) + R(n-5) + R(n-10) - R(n-20)где Rn - это n-й член последовательности RATS.Начнем с вводного значения:R1 = 2
R2 = 0
R3 = 2
R4 = 2
R5 = 2
R6 = 6
R7 = 8
R8 = 14
R9 = 24
R10 = 42
R11 = 74
R12 = 134
R13 = 244
R14 = 446
R15 = 814
R16 = 1486
R17 = 2702
R18 = 4922
R19 = 8968
R20 = 16350Далее, продолжаем вычисления для 40-го члена:R21 = R16 + R11 + R6 - R1 = 1486 + 74 + 6 - 2 = 1564
R22 = R17 + R12 + R7 - R2 = 2702 + 134 + 8 - 0 = 2844
R23 = R18 + R13 + R8 - R3 = 4922 + 244 + 14 - 2 = 5178
R24 = R19 + R14 + R9 - R4 = 8968 + 446 + 24 - 2 = 9436
R25 = R20 + R15 + R10 - R5 = 16350 + 814 + 42 - 2 = 17104
R26 = R21 + R16 + R11 - R6 = 1564 + 1486 + 74 - 6 = 3118
R27 = R22 + R17 + R12 - R7 = 2844 + 2702 + 134 - 8 = 5672
R28 = R23 + R18 + R13 - R8 = 5178 + 4922 + 244 - 14 = 10330
R29 = R24 + R19 + R14 - R9 = 9436 + 8968 + 446 - 24 = 18326
R30 = R25 + R20 + R15 - R10 = 17104 + 16350 + 814 - 42 = 33226И так далее, продолжаем вычисления до 40-го члена:R40 = 22113516Таким образом, 40-й член RATS-последовательности, начинающейся с 2022, равен 22113516.
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Задание по английскому III. Arrange these jumbled words and expressions to make correct sentences. 1. Engineered/…
never/ of/ crop/ a/ stroke/ which/ to/ genius/ humans. 4. Upon/ usually/ and/ rodents/ prey/ cats/ rats/ other/ mice. 5. Chemicals/ the/ ground/ unfortunately/ seeped/ poisonous/ the/ into/ water.
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Certain plants are genetically engineered to be more resistant to pests.The use of pesticides and fertilizers evidently poses a serious environmental problem rather.Humans had never occurred to a stroke of genius, which was rotation of crop.Cats usually prey upon rats, mice, and other rodents.Unfortunately, the poisonous chemicals seeped into the ground water.The team of geologists has found a rich deposit of iron ore.Look, the lawn is covered with fungi.
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III. Arrange these jumbled words and expressions to make correct sentences. 1. Engineered/ really/ to/ are/…
never/ of/ crop/ a/ stroke/ which/ to/ genius/ humans. 4. Upon/ usually/ and/ rodents/ prey/ cats/ rats/ other/ mice. 5. Chemicals/ the/ ground/ unfortunately/ seeped/ poisonous/ the/ into/ water. 6.
Ответ на вопрос
Certain plants are genetically engineered to be more resistant to pests.The use of serious pesticides and fertilizers evidently poses a rather environmental problem.The stroke of genius never occurred, which had humans had a rotation of crop.Cats usually prey upon rats, mice, and other rodents.Unfortunately, poisonous chemicals seeped into the ground and water.The team of geologists has found a rich deposit of iron ore.Look, the lawn is covered with fungi.
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Complete the sentences. 1) The people of that citi were very... . 2) There were a lot of ... in the houses. 3) The…
sentences. 1) The people of that citi were very... . 2) There were a lot of ... in the houses. 3) The rats ... ... ... noise. 4) The door opened and a tall ... came in. 5) He ... a long coat. 6) He had a
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1) The people of that city were very welcoming and friendly.
2) There were a lot of books in the houses.
3) The rats scurried around making noise.
4) The door opened and a tall man came in.
5) He wore a long coat.
6) He had a sword.
7) "I can play my guitar," he said.
8) The king promised fifty thousand pieces of gold.
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Work with a partner. Which animals can you find in the countryside near your city? In my town, there are bitds and…
Which animals can you find in the countryside near your city? In my town, there are bitds and maybe rats at night!
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In my town, we can find a variety of animals in the countryside, such as deer, foxes, rabbits, squirrels, and various types of birds like hawks, owls, and herons. There are also occasional sightings of coyotes and even bears in more remote areas. Do you have any interesting animals near your city?
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