Giúp e bài VI vs ah
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IV
1 do
2 to be
3 was waiting
4 went - wouldn't be
5 were
6 smoking
7 is always leaving
8 to study
9 haven't spoken
10 arrive
V
1 wealthy
2 imagination
3 literately
4 phýical
5 observation
6 Married
7 behavior
8 incredible
9 seniority
10 unbelievable
IV
1 do
2 to be
3 was waiting
4 went - wouldn't be
5 were
6 smoking
7 is always leaving
8 to study
9 haven't spoken
10 arrive
V
1 wealthy
2 imagination
3 literately
4 physical
5 observation
6 Married
7 behavior
8 incredible
9 seniority
10 unbelievable
I wish the council wasn't demolishing it
If I were good at English, I could become a tour guide
"I will hold an event about skin care next month" Mary said
She was given the book " The fault in our stars " as a birthday gift by him
He wishes he could come to his brother's wedding
He advised me not to longer spend most of time chatting on Facebook.
How long did you start searching for some facts in the past ?
My mother used to for me when I married my wife
She was so frightened that she lost control of her car.
It was such a delicious dessert that I decided to order portion
Because of my sickness, I don't go out
2: x+13 là bội của x-1
=>\(x+13⋮x-1\)
=>\(x-1+12⋮x-1\)
=>\(x-1\inƯ\left(12\right)\)
mà x-1>=-1(vì x là số tự nhiên)
nên \(x-1\in\left\{-1;1;2;3;4;6;12\right\}\)
=>\(x\in\left\{0;2;3;4;5;7;13\right\}\)
3: 4x+9 là bội của 2x+1
=>\(4x+9⋮2x+1\)
=>\(4x+2+7⋮2x+1\)
=>\(2x+1\in\left\{1;7\right\}\)
=>\(x\in\left\{0;3\right\}\)
b: Sửa đề: AO vuông góc BI
Gọi M là trung điểm của IC
Xét ΔIHC có IO/IH=IM/IC
nên OM//HC và OM=1/2HC
=>OM vuông góc AH
Xet ΔAHM có
MO,HI là đường cao
MO cắt HI tại O
=>O là trực tâm
=>AO vuông góc HM
=>AO vuông góc BI