a, = 12⁷           b, 3⁵ : 3⁴= 3¹       c 10⁹ : 10⁴= 10⁵

d, = 8 x 8⁹= 8¹⁰      e, 12 x 12⁵= 12⁶        g,  6 x 6⁷= 6⁸

= 5/8 + 2/9 - 35/72 - 55/24

= 61/72 - 35/72 - 55/24

=  -139/72

the reason why she said goodbye to him was that he so is selfish

-> if......................................................................................................

it will be fine today . he will take you to the cirus

-> if.........................................................................

giải phương trình sau

\(-cosx+\sqrt{3}sinx=2\)

giúp mình với ạ

I. which underlined part is pronounced differently

1. A. war    B work    C world    D whom

2. A twice    B twenty   C twofold   D twist

3. A winter  B answer   C award   D towards

4. A lawn    B allow       C drawing  D swimming

5  A students  B refuse   C united   D uncle 

6 A sword   B sweat    C swing    D swallow 

7 A mow    B know    C dawn    D window

8 A drain    B taxi driver   C handicap   D handsome

9 A castle   B twenty    C volunteer    D master 

10 A iron    B province   C drop   D promte

I. which underlined part is pronounced differently

1. A. war    B work    C world    D whom

2. A twice    B twenty   C twofold   D twist

3. A winter  B answer   D award   D towards

4. A lawn    B allow       C drawing  D swimming

5  A students  B refuse   C united   D uncle 

6 A sword   B sweat    C swing    D swallow 

7 A mow    B know    C dawn    D window

8 A drain    B taxi driver   C handicap   D handsome

9 A castle   B twenty    C volunteer    D master 

10 A iron    B province   C drop   D promte

1 mother entered the room quietly. she didn't want to wake up her baby ( to )

2 we are learning english. we can get a good job ( to )

3 ken is learning vietnamese. He wishes to read Kieu ( to )

have you got the library card that i can borrow some english books ( to )