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4 tháng 1 2018

In fact, I don't prefer to any sports in particular, neither do I believe in any health care products, so the only thing I do to keep healthy is going to bed and getting up early. It seems that it's easy to go to bed and get up early, but actually it's not the case. Nowadays, an increasing number of pressures from study or other aspects of life make it hard for us to do so. Firstly, going to bed early is not easy to do. For example, when some of my classmates stay up late preparing for an exam, I will feel great peer pressure. More than once I have the impulse to lea m from them and stay up late together with them. And lots of temptations such as computer games make it worse. Sometimes all the people in the dorm stay up late engaging in those mindless activities. But I am usually able to control my impulse and desire to go to bed late in the last minute and stick to my own lifestyle. And, early to rise isn't that easy either especially in winter when it's comfortable to linger under the covers. I sometimes manage to do so by convincing myseIf of the benefit of early rise. In this way, I've kept sleeping 7 or 8 hours a day for years. I think early to bed and early to rise can help me keep healthy physically and mentally, and can avoid wasting electrical power as we 11. So, it has become the only thing I do to keep healthy, and I am proud I can do so because it al so requires considerable persistence and strong will.

15 tháng 1 2018

Thanks bạn nha

30 tháng 12 2017

My favourite drink is iced-tea lemon.It easy to make it.Firts,put the tea bag in saml cup,pour slowly boiled water into it.Then,wait for 5-7 minitues and get the teabag out.Next,cut the lemon in half then press the water from it,,but don't use seed.After that,add some sugar and stir the mixture then add some ice.Finally,your drink has already served pour into the glasses

chúc bạn học tốt

30 tháng 12 2017

<h3 justify\"="" >Favorite drink:

Vietnam is a tropical country. So there are many kinds of foods and drinks to choose. I like all kinds of fruits such as avocado, mango, orange, apple, etc. But the drink I love most is avocado smoothie. This healthy smoothie is perfect for a breakfast, a quick snack, or whenever I need a healthy boost. Avocados are high in fat, healthy type of fat. They also contain fat-soluble vitamin E, vitamin C. Especially, avocados are an excellent source of antioxidant carotenoids like alpha-carotene, beta-carotene, beta-cryptoxanthin, lutein and zeaxanthin that may help slow aging, prevent certain cancers, heart disease, lose weight and improve your skin tone. Let’s enjoy our instant breakfast avocado smoothie and have an awesome day!

21 tháng 10 2021

Giúp e mấy bài đó đi mn ạ

 

23 tháng 1 2022

Bài 1:

a, Xét ΔABC và ΔCDA có:

AB=CD(gt)

AD=BC(gt)

Chung AC

⇒ΔABC = ΔCDA (c.c.c)

b, ΔABC = ΔCDA(cma) ⇒\(\widehat{ACB}=\widehat{CAD}\) ( 2 góc tương ứng)

Mà 2 góc này ở vị trị so le trong với nhau ⇒ AD // BC

23 tháng 1 2022

Bn vẽ hình bài 1 cho mik đc ko ạ! Mik chưa hiểu rõ lắm!

3 tháng 8 2021

Easter is an important religious holiday in a lot of countries in the world.

Less electricity will be used in the future.

What is the weight of this big bag?

an hour walking to walk yesterday

better not eat too much fat food

3 tháng 8 2021

4 Easter is an important religious holiday in a lot of countries in the world

II

1 Less electricity will be used in the future

2 What is the weight of this bag?

3 I spent an hour walking to work yesterday

4 You'd better not eat too much fat food

23 tháng 12 2021

g: \(=\dfrac{x^2+2x-x^2-4x-2x+4}{x\left(x-2\right)\left(x+2\right)}=\dfrac{-4x+4}{x\left(x-2\right)\left(x+2\right)}\)

h: \(=\dfrac{2x^2+1-x^2+1-x^2+x-1}{\left(x+1\right)\left(x^2-x+1\right)}\)

\(=\dfrac{x+1}{\left(x+1\right)\left(x^2-x+1\right)}=\dfrac{1}{x^2-x+1}\)

23 tháng 12 2021

\(e,=\dfrac{1}{x-1}-\dfrac{2x}{\left(x^2+1\right)\left(x-1\right)}=\dfrac{x^2-2x+1}{\left(x^2+1\right)\left(x-1\right)}=\dfrac{\left(x-1\right)^2}{\left(x^2+1\right)\left(x-1\right)}=\dfrac{x-1}{x^2+1}\\ f,=\dfrac{3x-1}{2\left(3x+1\right)}+\dfrac{3x+1}{2\left(3x-1\right)}-\dfrac{6x}{\left(3x-1\right)\left(3x+1\right)}\\ =\dfrac{9x^2-6x+1+9x^2+6x+1-12x}{2\left(3x-1\right)\left(3x+1\right)}=\dfrac{2\left(3x-1\right)^2}{2\left(3x-1\right)\left(3x+1\right)}=\dfrac{3x-1}{3x+1}\)

\(g,=\dfrac{x}{x\left(x-2\right)}-\dfrac{x^2+4x}{x\left(x-2\right)\left(x+2\right)}-\dfrac{2}{x\left(x+2\right)}\\ =\dfrac{x^2+2x-x^2-4x-2x+4}{x\left(x-2\right)\left(x+2\right)}=\dfrac{-4x+4}{x\left(x-2\right)\left(x+2\right)}\\ h,=\dfrac{2x^2+1-x^2+1-x^2+x-1}{\left(x+1\right)\left(x^2-x+1\right)}=\dfrac{x+1}{\left(x+1\right)\left(x^2-x+1\right)}=\dfrac{1}{x^2-x+1}\)