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I. 1.''you can use my telephone if you want'' -mary said to me..... 2.''you are my bestfriend'' -she said to me...... 3.''are you going to move to live in the city?'' -they asked me..... 4.''do you like the gift from me?'' -she asked me..... 5.''i am studying hard now because i want to get better mark this semester'' -he said that..... 6.''you must follow your parents'advice,Lan'' -he said..... 7.''do you remember me?'' -my aunt asked me..... 8.''what is your new teacher...
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I.

1.''you can use my telephone if you want''

-mary said to me.....

2.''you are my bestfriend''

-she said to me......

3.''are you going to move to live in the city?''

-they asked me.....

4.''do you like the gift from me?''

-she asked me.....

5.''i am studying hard now because i want to get better mark this semester''

-he said that.....

6.''you must follow your parents'advice,Lan''

-he said.....

7.''do you remember me?''

-my aunt asked me.....

8.''what is your new teacher like?''

-he asked the chilren......

9.''who teaches you english this year?''

-mary asked me....

10.''where are you working now?''

-mrs white asked me......

11.''what does he have to do this situation?''

-the man asked him...

12.''can you read without your glasses?''

-she asked me.....

13.''i come here today to congratulate you on passing your exam''

-she said me....

14.''are you tied of the noise in class?''

-the teacher asked us.......

15.''i must stay at home to do my homework''

-lan said........

16.''is it raining heavily?''

-they asked.....

17.''the soccer match is interesting''

-hoang reported that.........

18.''there ia a man sitting next to a woman''

-he said to us........

18.''what happened to your computer?''

-my mother said to me......

II.

1.''why don't we discuss it over a coffee?'' tom said (suggest)

2.''i'll lend you some money''Debbie said (promise)

3.''remember to switch off the lights'' my mother said (remind)

4.''take these letters to the post,will you?'' said the boss to his secretary (tell)

5.''don't touch thet wire,mary!' i said (warn)

III.

1.Marconi (invent) radio a long time ago

2.She (not,speak) to me for over a month

3.The war (break) out before i was born

4.i (buy) a good dictionary yesterday morning

5.you (have) dinner yet?

6.after she (go),he went to sleep

7. he had already leaned french before he (go) to france

8. so far,i (not,see) a camel

9.as soon as he (go) away,i wanted to see him again

10.she said that she already (see) the eiffel tower.

Help me!mk đg cần gấp.thanks nhìu

2
16 tháng 7 2018

I.

1.''you can use my telephone if you want''

-mary said to me..if I wanted ,you could use her telephone...

2.''you are my bestfriend''

-she said to me...that I was her bestfriend...

3.''are you going to move to live in the city?''

-they asked me...if I was going to move to live in the city ..

4.''do you like the gift from me?''

-she asked me...if I liked the gift from her?..

5.''i am studying hard now because i want to get better mark this semester''

-he said that..he was studying hard then because he wanted to get better mark that semester...

6.''you must follow your parents'advice,Lan''

-he said.to Lan that she had to follow her parents....

7.''do you remember me?''

-my aunt asked me..if I remembered her...

8.''what is your new teacher like?''

-he asked the chilren..what their new teacher was like....

9.''who teaches you english this year?''

-mary asked me..who taught me english that year.

10.''where are you working now?''

-mrs white asked me...where I was working then...

11.''what does he have to do this situation?''

-the man asked him.what he had to do that situation..

12.''can you read without your glasses?''

-she asked me..if I could read without her glasses...

13.''i come here today to congratulate you on passing your exam''

-she said me..she came here that day to congratulate me on passing her exam..

14.''are you tied of the noise in class?''

-the teacher asked us....if we were tied of the noise in class...

15.''i must stay at home to do my homework''

-lan said...she had to stay at home to do her homework.....

16.''is it raining heavily?''

-they asked...if it was raining heavily..

17.''the soccer match is interesting''

-hoang reported that.....the soccer match was interesting....

18.''there ia a man sitting next to a woman''

-he said to us..that there was a man sitting next to a woman......

18.''what happened to your computer?''

-my mother said to me...what had happened to my computer...

II.

1.''why don't we discuss it over a coffee?'' tom said (suggest)

Tom suggests discussing it over a coffee

2.''i'll lend you some money''Debbie said (promise)

Debbie promise me to lend me some money

3.''remember to switch off the lights'' my mother said (remind)

my mother remind me to switch off the lights

4.''take these letters to the post,will you?'' said the boss to his secretary (tell)

the boss told his secretary if he would 'take those letters to the post

5.''don't touch thet wire,mary!' i said (warn)

I warm mary not to touch thet wire

III.

1.Marconi (invent)invented radio a long time ago

2.She (not,speak)has not spoken to me for over a month

3.The war (break)had broken out before i was born

4.i (buy)bought a good dictionary yesterday morning

5.Have you (have)had dinner yet?

6.after she (go)had gone,he went to sleep

7. he had already leaned french before he (go)went to france

8. so far,i (not,see)haven't seen a camel

9.as soon as he (go)had gone away,i wanted to see him again

10.she said that she had already (see)seen the eiffel tower.

16 tháng 7 2018

giúp mk vs nhá! mk đg cần gấp!thanks các bạn nhìu lémhaha

13 tháng 12 2017

\(\dfrac{1}{1-x}\)+\(\dfrac{1}{1+x}\)+\(\dfrac{2}{1+x^2}\)+\(\dfrac{4}{1+x^4}\)+\(\dfrac{8}{1+x^8}\)+\(\dfrac{16}{1+x^{16}}\)

=

=\(\dfrac{4}{1-x^4}\)+\(\dfrac{4}{1+x^4}\)+\(\dfrac{8}{1+x^8}\)+\(\dfrac{16}{1+x^{16}}\)

=\(\dfrac{8}{1-x^8}\)+\(\dfrac{8}{1+x^8}\)+\(\dfrac{16}{1+x^{16}}\)

=\(\dfrac{16}{1-x^{16}}\)+\(\dfrac{16}{1+x^{16}}\)

=\(\dfrac{32}{1-x^{32}}\)

8 tháng 8 2015

a) Ta có I 2x - 1 I = 2015

=> 2x-1=2015 hoặc 2x-1=2015

+,Th1: 2x-1=2015

             2x=2015+1

             2x=2016

              x=2016:2

             x=1008

+,Th2: 2x-1=-2015

              2x=-2015+1

             2x=-2014

              x=-2014:2

             x=-1007

Vậy x=1008, x=-1007

 

 

|x-1|<5

th1: x-1<5=> x<6

th2: x-1<-5=> x<-4

vậy x <6 hoặc<-4

|x-1|>5 cũng tương tự như thế

còn mấy câu khác Nguyễn Diệu Thảo làm thế chắc bạn cũng biết cách làm rồi

L_I_K_E CHO MÌNH NHA!!!

a) Chương trình bị lỗi

b) Chương trình bị lỗi

c) Chương trình bị lỗi luôn

26 tháng 7 2019

I I  là dấu giá trị tuyệt đối nhé

26 tháng 7 2019

|7 + 5x| = 1 - 4x

=> \(\orbr{\begin{cases}7+5x=1-4x\left(đk:x\le\frac{1}{4}\right)\\7+5x=4x-1\left(đk:x\ge\frac{1}{4}\right)\end{cases}}\)

=> \(\orbr{\begin{cases}7-1=-4x-5x\\7+1=4x-5x\end{cases}}\)

=> \(\orbr{\begin{cases}6=-9x\\8=-x\end{cases}}\)

=> \(\orbr{\begin{cases}x=-\frac{2}{3}\left(tm\right)\\x=-8\left(ktm\right)\end{cases}}\)

|4x- 2x| + 1 = 2x

=> |4x2 - 2x| = 2x - 1

=> \(\orbr{\begin{cases}4x^2-2x=2x-1\left(đk:x\ge\frac{1}{2}\right)\\4x^2-2x=1-2x\left(đk:x\le\frac{1}{2}\right)\end{cases}}\)

=> \(\orbr{\begin{cases}4x^2-2x-2x+1=0\\4x^2-2x-1+2x=0\end{cases}}\)

=> \(\orbr{\begin{cases}\left(2x-1\right)^2=0\\4x^2-1=0\end{cases}}\)

=> \(\orbr{\begin{cases}2x-1=0\\x^2=\frac{1}{4}\end{cases}}\)

=> \(\orbr{\begin{cases}x=\frac{1}{2}\\x=\pm\frac{1}{2}\end{cases}}\)(tm)

Vậy ...

31 tháng 8 2023

???

6 tháng 4 2019

#It's the moment when you're in good mood, you accidentally click back =.=

1) Calculate

\(P=1\frac{1}{3}.1\frac{1}{8}.1\frac{1}{15}....1\frac{1}{63}.1\frac{1}{80}\)

\(=\frac{4}{3}.\frac{9}{8}.\frac{16}{15}....\frac{64}{63}.\frac{81}{80}\)

\(=\frac{2.2}{1.3}.\frac{3.3}{2.4}.\frac{4.4}{3.5}....\frac{8.8}{7.9}.\frac{9.9}{8.10}\)

\(=\frac{2.9}{10}=\frac{9}{5}\)

7 tháng 8 2019

ta có: 10010 + 1 > 10010 - 1

⇒ A = \(\frac{100^{10}+1}{100^{10}-1}< \frac{100^{10}+1-2}{100^{10}-1-2}=\frac{100^{10}-1}{100^{10}-3}=B\)

vậy A < B

19 tháng 12 2015

a) |2x +1| = 7

Th1: 2x + 1 = 7 

<=> x  = 3

Th2: 2x + 1 = -7 

<=> x = -4 

15 tháng 6 2018

\(1)\) Ta có : 

\(\left|2x-1\right|\ge0\)

\(\Leftrightarrow\)\(A=\left|2x-1\right|+8\ge8\)

Dấu "=" xảy ra \(\Leftrightarrow\)\(\left|2x-1\right|=0\)

\(\Leftrightarrow\)\(2x-1=0\)

\(\Leftrightarrow\)\(2x=1\)

\(\Leftrightarrow\)\(x=\frac{1}{2}\)

Vậy GTNN của \(A\) là \(8\) khi \(x=\frac{1}{2}\)

Chúc bạn học tốt ~ 

15 tháng 6 2018

\(2)\) Ta có : 

\(B=\left|x-3\right|+\left|x-9\right|-1\)

\(B=\left|x-3\right|+\left|9-x\right|-1\ge\left|x-3+9-x\right|-1=\left|6\right|-1=6-1=5\)

Dấu "=" xảy ra khi và chỉ khi \(\left(x-3\right)\left(9-x\right)\ge0\)

Trường hợp 1 : 

\(\hept{\begin{cases}x-3\ge0\\9-x\ge0\end{cases}\Leftrightarrow\hept{\begin{cases}x\ge3\\x\le9\end{cases}\Leftrightarrow}3\le x\le9}\)

Trường hợp 2 : 

\(\hept{\begin{cases}x-3\le0\\9-x\le0\end{cases}\Leftrightarrow\hept{\begin{cases}x\le3\\x\ge9\end{cases}}}\) ( loại ) 

Vậy GTNN của \(B\) là \(5\) khi \(3\le x\le9\)

Chúc bạn học tốt ~