Математический анализ (работа 7)

Оглавление

Задание 1

Задание 2

Задание 3

Задание 4

Задание 5

Задание 6

Литература

Задание 1.

Исследовать функцию и построить ее график: > >.

Решение:

y = 0, если х = 0 или х = > >

>>

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

y(-1) = -2, y(1) = 2.

>>

>>

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

Задание 2

    >>;

    >>;

    >>;

    >>;

    Найти dy, если > >.

Решение:

    >>

    >>

    >>

    >>

    >>, > >

Ответ: 1. > >; 2. > >; 3. > >; 4. > >; 5. > >.

Задание 3.

Вычислить объем тела, полученного вращением вокруг оси Ох фигуры, ограниченной линиями > >, х = 3 и осями координат.

Решение:

0100090000030202000002008a01000000008a01000026060f000a03574d464301000000000001005f150000000001000000e802000000000000e8020000010000006c00000000000000000000002c00000071000000000000000000000072260000861c000020454d4600000100e80200000e00000002000000000000000000000000000000a4120000a81a0000ca0000002101000000000000000000000000000010150300e8680400160000000c000000180000000a000000100000000000000000000000090000001000000015090000bd060000250000000c0000000e000080120000000c000000010000005200000070010000010000009cffffff00000000000000000000000090010000000000cc04400012540069006d006500730020004e0065007700200052006f006d0061006e00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000cb30093000000000040000000000ae30083109300000000047169001cc0002020603050405020304877a0020000000800800000000000000ff01000000000000540069006d00650073002000000065007700200052006f006d0061006e00000000000000bd2d093050bbae30003314000100000000000000a0431100aab40230a04311004c3eaf30b84311006476000800000000250000000c00000001000000180000000c00000000000002540000005400000000000000000000002c0000007100000001000000f37487408d858740000000005a000000010000004c00000004000000000000000000000015090000bd06000050000000200012002d00000046000000280000001c0000004744494302000000ffffffffffffffff16090000be060000000000004600000014000000080000004744494303000000250000000c0000000e0000800e000000140000000000000010000000140000000400000003010800050000000b0200000000050000000c0214017501040000002e0118001c000000fb020300010000000000bc02000000cc0102022253797374656d0000000000000000000000000000000000000000000000000000040000002d01000004000000020101001c000000fb02f0ff0000000000009001000000cc0440001254696d6573204e657720526f6d616e0000000000000000000000000000000000040000002d010100050000000902000000020d000000320a0e00000001000400000000007501140120ad0700040000002d010000030000000000

>>.

Ответ: > >.

Задание 4.

Для сжатия пружины на L см требуется сила 9,8 Н. Какую работу надо совершить, чтобы сжать пружину на 0,05 м.

Решение:

Работа > >, где F – сила, s – расстояние, пройденное под действием этой силы.

По закону Гука > >, где > > - абсолютное удлинение стержня, F – сила упругости, k – жесткость материала. Следовательно,

>>

>>

>>.

Ответ: > >.

Задание 5.

Найти интеграл:

а) > >;б) > >.

Решение:

а) > >

б) > >.

Ответ: а) > >; б) > >.

Задание 6.

Исследовать функцию и построить ее график:

    >>;

    >>;

    >>;

    >>;

    >>

Решение:

    >> - симметрична относительно оси Ох

y = 0, если > >, т.е. > >.

>>

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

y(-2) = y(2) = -9/4

y(0) = 7/4

>>

>>

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

    >>

Область определения > >

y = 0, если > >, корней нет:

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>>

>>, если > >

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

Корень один, он близок к х = 1, находится между х = 1,05 и х = 1,06, это точка минимума.

y(1) = 2, y(2) = 3.2, y(3) = 4,95

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    >>

y = 0, если х = 1,

область определения > >,

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

>>, х = 0 – асимптота.

>>;

корней, принадлежащих области определения, нет.

>>

>>;

корней, принадлежащих области определения, нет.

>>

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    >>

Уравнение y = 0 корней не имеет,

>>

>>, > >, х = 1/5 – асимптота

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>>

>>

y(0.007) = -0.3

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0100090000030202000002008a01000000008a01000026060f000a03574d464301000000000001005f150000000001000000e802000000000000e8020000010000006c00000000000000000000002c00000071000000000000000000000072260000861c000020454d4600000100e80200000e00000002000000000000000000000000000000a4120000a81a0000ca0000002101000000000000000000000000000010150300e8680400160000000c000000180000000a000000100000000000000000000000090000001000000015090000bd060000250000000c0000000e000080120000000c000000010000005200000070010000010000009cffffff00000000000000000000000090010000000000cc04400012540069006d006500730020004e0065007700200052006f006d0061006e00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000cb30093000000000040000000000ae30083109300000000047169001cc0002020603050405020304877a0020000000800800000000000000ff01000000000000540069006d00650073002000000065007700200052006f006d0061006e00000000000000bd2d093050bbae30003314000100000000000000a0431100aab40230a04311004c3eaf30b84311006476000800000000250000000c00000001000000180000000c00000000000002540000005400000000000000000000002c0000007100000001000000f37487408d858740000000005a000000010000004c00000004000000000000000000000015090000bd06000050000000200012002d00000046000000280000001c0000004744494302000000ffffffffffffffff16090000be060000000000004600000014000000080000004744494303000000250000000c0000000e0000800e000000140000000000000010000000140000000400000003010800050000000b0200000000050000000c0214017501040000002e0118001c000000fb020300010000000000bc02000000cc0102022253797374656d0000000000000000000000000000000000000000000000000000040000002d01000004000000020101001c000000fb02f0ff0000000000009001000000cc0440001254696d6573204e657720526f6d616e0000000000000000000000000000000000040000002d010100050000000902000000020d000000320a0e00000001000400000000007501140120ad0700040000002d010000030000000000

    >>

>>

>>

>>

y(0.4 + 4πk) = 4.9 + 48πk

y(-0.4 + 4πk) = -4.9 + 48πk

>>,

знак совпадает со знаком ctg(x/2)

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

Литература

    Зорич В.А. Математический анализ. Ч. 1, М., 2001. Ч. 2. 2001.

    Ильин В.А., Позняк Э.Г. Основы математического анализа. Ч. 1. М., 2001. Ч. 2, М., 2002.

    Кудрявцев Л.Д. Курс математического анализа: В 3 т. М., 1988-1989.

    Камынин Л.И. Курс математического анализа. Т. 1. М., 1993. Т. 2. М., 1995.

    Демидович Б.П. Сборник задач и упражнений по математическому анализу. М., 2003.