0.2<...<0.3
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A= 1 + 2 + 2 ^ 2 + 2 ^ 3 + 2 ^ 4 +***+2^ 208 +2^ 209 . và B= 1.2 * 0.2 ^ 2 * 0.2 ^ 3 * 0.2 ^ 4 ....2^ 19 .2^ 20 So sánh A và B.
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\(\left(-0.2\right)^4.\left(-0.2\right)^5\)
(-0,2)4 . (-0,2 )5 =
=(-0,2)4+5
=(-0,2)9
Xong!!! Chúc bạn học tốt!!
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9.6 : 0.2 * 15.4 * 0.2 * 15.4 * 0.25 .
--------------------------------------------
30.8 : 0.5 * 7.7 : 0.125 * 5 * 6
tinh tổng :
a. S = 0.2 + 2.4 + 4.6 +.......+ 98.100
b. S= 0.2+ 2.4 + 4.6 + .........+ 2n. ( 2n +2 )
Tinh:
a/S=0.2+2.4+4.6+......+98.100
b/ A= 0.2+2.4+4.6+......+ 2n(2n+2)
0.2 km2 = ?
0.2^97897867868667565464656565655644
195795735737335130929313131128,8
mk nhanh nhat nha
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Câu 11 (0.2 điểm) : Indicate the word whose underlined part differs from the other three in pronunciation in the following question.A. parentsB. weekendsC. feelingsD. brothersCâu 12 (0.2 điểm) : Indicate the word whose underlined part differs from the other three in pronunciation in the following question.A. speakersB. languagesC. nationsD. mindsCâu 13 (0.2 điểm) : We look forward to meeting our cousins again.A. We expect to meet our cousins again.B. We expected to meet our cousins again.C. we e...
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Câu 11 (0.2 điểm) : Indicate the word whose underlined part differs from the other three in pronunciation in the following question.
A. parents | B. weekends | C. feelings | D. brothers |
Câu 12 (0.2 điểm) : Indicate the word whose underlined part differs from the other three in pronunciation in the following question.
A. speakers | B. languages | C. nations | D. minds |
Câu 13 (0.2 điểm) : We look forward to meeting our cousins again.
A. We expect to meet our cousins again. | B. We expected to meet our cousins again. |
C. we expect to meeting our cousins again. | D. We expected to meeting our cousins again. |
Câu 14 (0.2 điểm) : Indicate the word that differs from the other three in the position of primary stress.
A. apartment | B. attitude | C. refreshment | D. acquaintance |
Câu 15 (0.2 điểm) : Indicate the word whose underlined part differs from the other three in pronunciation in the following question.
A. stepped | B. looked | C. moved | D. laughed |
Câu 16 (0.2 điểm) : I don’t like people interrupting me.
A. I don’t like being interrupted. | B. I don’t like being interrupting me. |
C. I don’t like to being interrupted. | D. I don’t like to be interrupting. |
Câu 17 (0.2 điểm) : Mark started to sing two hours ago.
A. Mark has sing for two hours. | B. Mark has sung since two hours. |
C. Mark have sung for two hours. | D. Mark has sung for two hours. |
Câu 18 (0.2 điểm) : Indicate the word whose underlined part differs from the other three in pronunciation in the following question.
A. hour | B. honest | C. honor | D. hold |
Câu 19 (0.2 điểm) : I can’t stand people telling me what to do.
A. I can’t stand be told what to do. | B. I can’t stand to being told what to do. |
C. I can’t stand being told me what to do. | D. I can’t stand being told what to do. |
Câu 20 (0.2 điểm) : Indicate the word whose underlined part differs from the other three in pronunciation in the following question.
A. dates | B. bags | C. photographs |
D. speaks
|
Câu 11 (0.2 điểm) : Indicate the word whose underlined part differs from the other three in pronunciation in the following question.
A. parents | B. weekends | C. feelings | D. brothers |
Câu 12 (0.2 điểm) : Indicate the word whose underlined part differs from the other three in pronunciation in the following question.
A. speakers | B. languages | C. nations | D. minds |
Câu 13 (0.2 điểm) : We look forward to meeting our cousins again.
A. We expect to meet our cousins again. | B. We expected to meet our cousins again. |
C. we expect to meeting our cousins again. | D. We expected to meeting our cousins again. |
Câu 14 (0.2 điểm) : Indicate the word that differs from the other three in the position of primary stress.
A. a'partment | B. 'attitude | C. re'freshment | D. ac'quaintance |
Câu 15 (0.2 điểm) : Indicate the word whose underlined part differs from the other three in pronunciation in the following question.
A. stepped | B. looked | C. moved | D. laughed |
Câu 16 (0.2 điểm) : I don’t like people interrupting me.
A. I don’t like being interrupted. | B. I don’t like being interrupting me. |
C. I don’t like to being interrupted. | D. I don’t like to be interrupting. |
Câu 17 (0.2 điểm) : Mark started to sing two hours ago.
A. Mark has sing for two hours. | B. Mark has sung since two hours. |
C. Mark have sung for two hours. | D. Mark has sung for two hours. |
Câu 18 (0.2 điểm) : Indicate the word whose underlined part differs from the other three in pronunciation in the following question.
A. hour | B. honest | C. honor | D. hold |
Câu 19 (0.2 điểm) : I can’t stand people telling me what to do.
A. I can’t stand be told what to do. | B. I can’t stand to being told what to do. |
C. I can’t stand being told me what to do. | D. I can’t stand being told what to do. |
Câu 20 (0.2 điểm) : Indicate the word whose underlined part differs from the other three in pronunciation in the following question.
A. dates | B. bags | C. photographs |
D. speaks
|
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4.1:xx1.5=0.2
4.1:xX1.5=0.2
4:xx.5=0,2
20:xx =0,2
xx =20:0,2=100
Vậy x=10
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