look at the table. circle the mistake in each sentence. write the correct sentence 1. a train is faster - id999722020200803 от kozina574 03.08.2020 04:13

Question

Алгебра: look at the table. circle the mistake in each sentence. write the correct sentence 1. a train is faster then a plane 2. a her is taller then a horse 3. australia is smaller than the uk 4. a plane is slower then a car 5. the uk is bigger than russia 6. a giraffe is shorter than a horse ​

kozina574 · Accepted Answer

Сначала берем производную: f (x)=(4x*(x^2-1)-4x^3)/(x^2-1)^2=4x(x^2-1-x^2)/(x^2-1)^2=-4x/(x^2-1)^2=0 приравниваем ее к 0 и находим критические точки: -4x/(x^2-1)^2=0 -4x=0 x1=0 x^2-1=0 x^2=1 x2=-1 x3=-1 1 и (-1) не входят в одз, но для определение убывания/возрастания их надо учитывать. определяем знак на каждом промежутке: так как знаменатель в квадрате, то он всегда будет положительный и его можно не учитывать. 1) на (-oo;-1) берем например (-2) и подставляем в производную: (-4)*(-2) - знак +...

look at the table. circle the mistake in each sentence. write the correct sentence1. a train is faster then a plane2. a her is taller then a horse 3. australia is smaller than the uk4. a plane is slower then a car5. the uk is bigger than russia6. a giraffe is shorter than a horse ​

MOGZ ответил

look at the table. circle the mistake in each sentence. write the correct sentence
1. a train is faster then a plane
2. a her is taller then a horse
3. australia is smaller than the uk
4. a plane is slower then a car
5. the uk is bigger than russia
6. a giraffe is shorter than a horse