C => waste

Là tìm max đó. Sau khi tìm được Bmin (GTNN của mẫu số) thì 1/Bmin là Amax vì mẫu càng nhỏ thì phân thức càng lớn

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Yesterday was Sunday, Nam got up at six. He did hí morning exercises.He took a shower, combed is hair, and then he had  breakfast with his parents.

Nam ate a bowl of noodles and drank a glass of milk for his breakfast. After breakfast, he helped  Mom clean the table. After that, he brushed his teeth, put on clean clothes, and went  to his grandparents`house. He had lunch with his grandparents. He returned  to his house at three o`clock. He did  his homework. He ate dinner at 6.30. After dinner, his parents took him to the movie theater. It was a very interesting film. They  came  back home at 9.30. Nam went  to bed at ten o`clock.

1. Yesterday wsa Sunday 

2. Nam got up at six

3. After breakfast, he  helped Mom clean the table

4. He had lunch with his grandparents

5. He had dinner at 6.30

6. He went to bed at ten o`clock

I think the weather will be nice later

2 Giờ 29 Phút

3 Giờ 47 Phút

4,3 Giờ