84:4=....
23elokd,ow
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Theo hệ thức Chasles, ta có:
\(\begin{array}{l}(Ov,Ow) = (Ou,Ov) - (Ou,Ow) + k2\pi \\\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = \, - \frac{{11\pi }}{4} - \frac{{3\pi }}{4} + k2\pi = - \frac{7}{2} + k2\pi ,\,\,(k \in \mathbb{Z})\end{array}\)
I.
1.A.brown B.tomorrow C.down D.how
2.A.life B.excited C.sink D.decide
3.A.my B.early C.city D.lucky
4.A.named B.lived C.stayed D.watched
1.A.window B.flow C.how D.show
2.A.hungry B.thirsty C.finally D.my
3.A.month B.weather C.thick D.throw
4.A.cabbage B.engineer C.sausage D.jogging
5.A.ground B.should C.about D.mountain
1.A.window B.flow C.how D.show
2.A.hungry B.thirsty C.finally D.my
3.A.month B.weather C.thick D.throw
4.A.cabbage B.engineer C.sausage D.jogging
5.A.ground B.should C.about D.mountain
1. a. fans d. jobs b. seas c works
2. a. divided b. lied c. polluted d. wanted
3. a. row b. know c. plow d. now
4. a. impress b. equal c. prevent d. respond
5. a. access b. campus c. trash d. spray
a, 84 + (-13) - (-29)
= 84 - 13 + 29
= 71 + 29
= 100
b, (-15).2 - 120 : 6 + 84 : (-4)
= -30 - 20 - 21
= - (30 + 20 + 21)
= - 71
Choose the word that has the underlined part pronounced differently:
1. A. happy B. character C. fat D. classmate
2. A. teacher B. pleasure C. please D. meet
3. A. tomorrow B. brown C. now D. how
4. A. joke B. local C. blond D. sociable
=8 nhé
21 nhé