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2 what does your brother do in his free time
3 what's your favorite pastime
4 what do they often do when they have spare time
5 what did you do were you in
2. What does his brother do in his free time?
3. What your favourite pastime?
5. What did you do when you were in Hue?
Ta có: \(\left(x-\dfrac{1}{5}\right)^{2004}\ge0\forall x\)
\(\left(y+0.4\right)^{100}\ge0\forall y\)
\(\left(z-3\right)^{678}\ge0\forall z\)
Do đó: \(\left(x-\dfrac{1}{5}\right)^{2004}+\left(y+0.4\right)^{100}+\left(z-3\right)^{678}\ge0\forall x,y,z\)
Dấu '=' xảy ra khi
\(\left\{{}\begin{matrix}x-\dfrac{1}{5}=0\\y+0.4=0\\z-3=0\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}x=\dfrac{1}{5}\\y=-\dfrac{2}{5}\\z=3\end{matrix}\right.\)
Vậy: (x,y,z)=\(\left(\dfrac{1}{5};-\dfrac{2}{5};3\right)\)
1 poverty
2 decision
3 worried
4 awake
5 singers
7 northen
8 disappeared
9 difference
10 unimportant
11 windy
12 portable
13 sensibly
14 painting
15 mainly
1 C
2 B
3 A
4 D
5 B
6 A
7 C
8 B
9 B
10 D
II
1 B => terrified
2 Despite => although
3 B => boring
4 A => despite
5B => shocked
III
1 romantic
2 criticisms
3 frightening
4 actor
5 unsuccessful
6 terrorblade
7 unsatified
8 disapointment
9 threatened
10 violence
1 was
2 the
3 school
4 started
4 made
6 moment
7 have
8 they