3 Look at the words in blue in the text. Complete the rules 1 We use to talk about a thing or action - id1655573720201127 от оскарик3929 27.11.2020 20:36

Question

Алгебра: 3 Look at the words in blue in the text. Complete the rules 1 We use to talk about a thing or action without saying what it is I need to eat. 2 We use__and to talk about things in negative sentences I didn t do I ve got to do We use anything in questions. 3 We use to talk about all the the things /​

оскарик3929 · Accepted Answer

* * * * * * * * * * * * * * * * * * * * * * * Решить неравенство x² -6x +10 ≤ |cos(πx/3)|

ответ: x = 3

Объяснение: x² -6x +10 ≤ | cos(πx/3) |⇔ (x -3)² + 1 ≤ | cos(πx/3) |

(x -3)² + 1 ≥ 1 , | cos(πx/3) | ≤ 1

Возможно , только, если левые и правые части одновременно равны единицы

{ (x -3)² + 1 = 1 ; {x=3

{ | cos(πx/3) | = 1 . {cos(πx/3) = ±1

только x = 3

* * * x = 3 ⇒| cos(πx/3) |= | cos(π*3/3) | = |cos(π) | = | -1 | = 1. * * *

3 Look at the words in blue in the text. Complete the rules
1 We use to talk about a thing or action
without saying what it is
I need to eat.
2 We use__and to talk about things in
negative sentences
I didn't do
I've got to do
We use anything in questions.
3 We use to talk about all the the things /

MOGZ ответил

3 Look at the words in blue in the text. Complete the rules1 We use to talk about a thing or actionwithout saying what it isI need to eat.2 We use__and to talk about things innegative sentencesI didn't doI've got to doWe use anything in questions.3 We use to talk about all the the things /​

MOGZ ответил

3 Look at the words in blue in the text. Complete the rules
1 We use to talk about a thing or action
without saying what it is
I need to eat.
2 We use__and to talk about things in
negative sentences
I didn't do
I've got to do
We use anything in questions.
3 We use to talk about all the the things /