0 және не знаю как гOTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
Write the correct preposition, then complete the
sentences for you.
Write the correct preposition, then complete the
sentences for you.
Write the correct preposition, then complete the
sentences for you.
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
Write the correct preposition, then complete the
sentences for you.
Write the correct preposition, then complete the
sentences for you.
Write the correct preposition, then complete the
sentences for you.
Write the correct preposition, then complete the
sentences for you.
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Объяснение:
Вопрос 1.
Такую функцию называют обратимой.
Обратимой называется функция в которой произвольному значению функции соответствует единственное значение аргумента.
Вопрос 2.
Исходная обратимая функция и функция, полученная из нее путем замены x на y и y на x, называются обратными.
у=5х+2
х=5у+2
5у=х-2
у=0,2(х-2)
Вопрос 3.
Строго монотонная функция обратима.
Да, является.
Вопрос 4.
Обратимые функции:
у=5х+2
у=х⁵
у=х³+1
Если найти производную каждой фцнкции, то выяснится, что функции монотонны, а заначит обратимы.
xy=2-3x^2
xy=6-y^2/3
Если равны левые части, то можно приравнять и правые:
2-3x^2=6-y^2/3
6-9x^2=6-y^2
9x^2=y^2
y=3x
Во второе уравнение системы подставим вместо y^2 - 9x^2, вместо y - 3x:
9x^2+3x*3x=6
18x^2=6
x^2=1/3
x1=√3/3
x2=-√3/3
Если х1=√3/3, то y = 3*√3/3=√3
(√3/3; √3) - решение
Если х2=-√3/3, то y = 3*(-√3/3)=-√3
(-√3/3; -√3) - решение.
ответ: (√3/3; √3), (-√3/3; -√3).