a)f(x)=(8x⁵-5x⁸)¹²
f ' (x) = ((8x⁵-5x⁸)¹²) ' = 12*(8x⁵-5x⁸)¹¹ * (8x⁵-5x⁸) ' = 12*(8x⁵-5x⁸)¹¹ * (40x⁴-40x⁷) = 12*(8x⁵-5x⁸)¹¹ * 40x⁴(1-x³) = 480x⁴ * (8x⁵-5x⁸)¹¹ * (1-x³)
б)f(x)=(1/9 - 3x³)²⁷
f ' (x) = ((1/9 - 3x³)²⁷) ' = 27(1/9 - 3x³)²⁶ * (1/9 - 3x³) ' = 27(1/9 - 3x³)²⁶ * (-3*3x²) = 27(1/9 - 3x³)²⁶ * (-9x²) = -243x² * (1/9 - 3x³)²⁶
в) f(x)=(4x¹⁰-5x)¹⁰
f ' (x) = ((4x¹⁰-5x)¹⁰) ' = 10(4x¹⁰-5x)⁹ * (4x¹⁰-5x) ' = 10(4x¹⁰-5x)⁹ * (40x⁹-5)= 10(4x¹⁰-5x)⁹ * 5(8x⁹-1)=50(4x¹⁰-5x)⁹ * (8x⁹-1)
г)f(x)=(x⁵-4x⁴)¹³⁰
f ' (x) = ((x⁵-4x⁴)¹³⁰) ' = 130(x⁵-4x⁴)¹²⁹ * (x⁵-4x⁴) ' = 130(x⁵-4x⁴)¹²⁹ * (5x⁴-16x³) = 130(x⁵-4x⁴)¹²⁹ * x³(5x-16) = 130*x³ * (x⁵-4x⁴)¹²⁹ * (5x-16)
at our lessons we answer the teacher's questions.
in england they don't go to school every day.
i do my homework in my bedroom.
the pupils on duty tidy the classroom.
all the pupils have to wear uniforms.
i come to school at a quarter to eight.
we like to make reports.
i do me homework every day.
i have my music lessons two times a week.
we have english three times a week.
this magazine is published to times a month.
i visit my aunt three times a month.
i never miss classes.
i go to the forest very often.
they seldom go to the theatre.
i don't want to answer the teacher's questions.
my friends and i go to school every day.
i do my homework at school.
every friday the students tidy their classrooms.
we don't have to wear a uniform at our school.
as a rule they come to school at 8 a.m.
my sister like to make reports on geography.
we must do washing up every day.
i have to play chess two times a week.
we go to a swimming pool three times a week.
my mother goes to the dentist two times a month.
i go to the disco three times a month.
i have never been to volgograd.
she goes to the cinema very often.
they seldom sing and dance.
Поделитесь своими знаниями, ответьте на вопрос:
a)f(x)=(8x⁵-5x⁸)¹²
f ' (x)=12(8x⁵-5x⁸)¹¹ * (40x⁴-40x⁷)
б) f(x)=(1/9 - 3x³)²⁷ ваш ответ не верный
f ' (x)=27(1/9-3x³)²⁶ * (-9x²)=-243x²(1/9-3x³)²⁶
в) f(x)=(4x^10-5x)^10
f ' (x)=10(4x¹⁰-5x)9 *(40x⁹-5)
г) f(x)=(x^5-4x^4)^130
f ' (x)=130(x⁵-4x⁴)¹²⁹ * (5x⁴-16x³)