Your house is smaller than my house

The red car is more expensive than the black one

The bathroom has a sink, a tub and a shower

Trung is the tallest person in the group

Is this the best refrigerator you got?

N houses in this street is older than mine

Madonna sings the most beautifully

Their address is at 83 Son Tay street

Your house is smaller than my house.

The red car is more expensive than the black one.

The bathroom has a sink, a tub and a shower.

Trung is the tallest in the group.

Is this the best refrigerator you have?

No houses on the street is older than my house.

There is a living room, a bed room and a kitchen in my house.

Madonna sings the most beautifully.

How about going to the beach for a chance?

Their house is at 83 Son Tay Street.

1 c

1C

2 ko có đáp án đúng

3B

4A

5C

6D

7D

8B

\(a,=\dfrac{\sqrt{3}\left(\sqrt{5}-\sqrt{2}\right)}{\sqrt{7}\left(\sqrt{5}-\sqrt{2}\right)}=\dfrac{\sqrt{21}}{7}\\ b,=\dfrac{\sqrt{5}\left(\sqrt{3}+\sqrt{2}\right)}{\sqrt{4}\left(\sqrt{3}+\sqrt{2}\right)}=\dfrac{\sqrt{5}}{2}\\ c,=\dfrac{\sqrt{x}\left(\sqrt{x}+\sqrt{y}\right)}{\sqrt{y}\left(\sqrt{x}+\sqrt{y}\right)}=\dfrac{\sqrt{xy}}{y}\\ d,=\dfrac{\left(\sqrt{3}-\sqrt{2}\right)\left(2\sqrt{5}-\sqrt{3}\right)}{\left(2\sqrt{5}-\sqrt{3}\right)\left(1-\sqrt{2}\right)}=\dfrac{\sqrt{3}-\sqrt{2}}{1-\sqrt{2}}\\ =\left(\sqrt{2}-\sqrt{3}\right)\left(\sqrt{2}+1\right)=2+\sqrt{2}-\sqrt{6}+\sqrt{3}\)

c: \(=7-3\cdot2+3\)

=10-9

=1

LỖI  nhé

Là sao bn nói rõ hơn đc ko

a

x²...9y²...x

b

4x²-12xy...3y

`x-2/3=3/4`

`=>x=3/4 + 2/3`

`=> x= 9/12 + 8/12`

`=>x= 17/12`

\(x-\dfrac{2}{3}=\dfrac{3}{4}\)

\(x=\dfrac{3}{4}+\dfrac{2}{3}=\dfrac{9}{12}+\dfrac{8}{12}\)

\(x=\dfrac{17}{12}\)

d2: =sum(a2:c2)

d3: =sum(a3:c3)

d4: =sum(a4:c4)

d5: =sum(a5:c5)

d6: =sum(a6:c6)