Предмет: Алгебра, автор: juzaplay373

докажите что система уравнений имеет бесконечное число решений ​

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Ответы

Автор ответа: pypsik68
0

Ответ:

сам думайййй.........

Автор ответа: sevaviki
0

Ответ:

Ответ на фото!!!!!!

Объяснение:

Если

\frac{a1}{a2} = \frac{b1}{b2 } = \frac{c1}{c2}

То тогда уравнение имеет бесконечно много корней

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1. Use the phrasal verb take (off, back, out, away) to fill in the gaps.

1. Two sandwiches _________________, please.

2. Shoes turned to be small, so I _________them_________ to the shop.

3. It’s too hot here. I think I'll ________ the fur coat ________

4. There’s a party with celebrities. So I am ____________ you ________ for the party.


2. Fill in: box, can, carton, bottle, cup, tin, packet, jar.

1. a ____________ of cereal 5. a ____________ of honey

2. a ____________ of milk 6. a ____________ of sardines

3. a ____________ of tea 7. a ____________ of water

4. a ____________ of cola 8. a ____________ of crisps


3. Use: some, any, no

1. There were __________ of my friends there.

2. Well, anyway, there is __________ need to hurry, now that we have missed the train.

3. Have you ever seen __________ of these pictures before?

4. There is __________ water in the kettle: they have drunk it all.

5. There were __________ birches in that forest, but so many pines.

6. We could not buy cherries, so we bought __________ plums instead.


4. Use: much or many

1. I don't eat __________ mangoes.

2. He does not eat __________ fish.

3. She ate so __________ dessert that she is in bed today with a stomachache.

4. He had got so __________ pairs of socks.

5. Please don't put __________ pep¬per on the meat.

6. There were too __________ plates on the table.

7. I never eat __________ bread with soup.

8. Why did you eat so __________ ice cream?

9. She wrote us not very __________ letters from the country.

5. Use: little or few

1. He has got __________ friends.

2. I drink __________ coffee. I don't like it.

3. We must hurry. We've got very __________ time.

4. This university offers very __________ scholar¬ships.

5. The Smiths have __________ money. They aren't rich.

6. The theatre was almost empty. There were very __________ people there.

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1. The vegetables ______________________________ (boil) since 10 o’clock.

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4. I __________________________(try) to find my documents since last Sunday.

5. They____________________________ (learn) Japanese for a couple of years.

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