Part 1 : 

1. so 

2. forward

3. which

4.didn't

5. if

6. although

Part 2 : 

1.C

2.E

3.A

4.F

5.B

6.D

Part 3 : 

1. eruption

2.compelling

3.badly

4.natural 

5. not to stay 

6. didn't work / has had

8. would tell

Part 4 : 

1. didn't => haven't

2. happily => happy

3. complains => should complain

4. on => off

Part 1:

1. with

2. does

3. after

4. if

5. where

6. I won't

Part 2:

1B 2F 3A 4E 5C 6D

Part 3:

1. invited

2. will play

3. have just won

4. be cleaned

5. to take

6. beautifully

7. impression

Part 4:

1. read -> reading

2. disappointing -> disappointed

3. environment -> environmental

4. who -> that

Part 5:

1. the bad weather

2. are made to study

3. were good at learning

4. going to the English

chưa đủ bạn ơi còn nhiều số nữa hãy gắng suy nghĩ giúp mình đi

số 3;5;9 nha bạn

Hình như số nguyên tố p là số 5 đos bạn

Câu 5:

Áp dụng bất đẳng thức AM - GM ta có: \(\dfrac{P}{1152}=\dfrac{\sqrt{a-1}}{a}+\dfrac{\sqrt{b-9}}{b}+\dfrac{\sqrt{c-16}}{c}=\dfrac{\sqrt{a-1}}{\left(a-1\right)+1}+\dfrac{\sqrt{b-9}}{\left(b-9\right)+9}+\dfrac{\sqrt{c-16}}{\left(c-16\right)+16}\le\dfrac{1}{2}+\dfrac{1}{6}+\dfrac{1}{8}=\dfrac{19}{24}\Rightarrow P\le912\).

Đẳng thức xảy ra khi a = 2, b = 18, c = 32.

Vậy...

a. \(R=\dfrac{R1.R2}{R1+R2}=\dfrac{3.6}{3+6}=2\Omega\)

b. \(U_{AB}=R.I_{AB}=2.2=4V\)

c. \(U_{AB}=U1=U2=4V\)(R1//R2)

\(\left\{{}\begin{matrix}I1=U1:R1=4:3=1,\left(3\right)A\\I2=U2:R2=4:6=0,\left(6\right)7A\end{matrix}\right.\)

Gọi số bị trừ là \(\overline{a3}\)

=> số trừ là: \(a\)

ta có: \(\overline{a3}-a=57\)

\(=>10a+3-a=57\)

\(=>9a=54\)

\(=>a=6\)

Vậy số trừ là 6. 

\(#tnam\)