8. I'd have sent you a postcard while I was on my vacation if I ....... your address.
remembered
had remembered
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Những câu hỏi liên quan
16 tháng 5 2020
Câu 5 nữa bạn cố gắng làm giúp mik nha ko thì mình 0 điểm á, nha iu nhìu lém
TT
1
13 tháng 12 2017
\(\dfrac{1}{1-x}\)+\(\dfrac{1}{1+x}\)+\(\dfrac{2}{1+x^2}\)+\(\dfrac{4}{1+x^4}\)+\(\dfrac{8}{1+x^8}\)+\(\dfrac{16}{1+x^{16}}\)
=
=\(\dfrac{4}{1-x^4}\)+\(\dfrac{4}{1+x^4}\)+\(\dfrac{8}{1+x^8}\)+\(\dfrac{16}{1+x^{16}}\)
=\(\dfrac{8}{1-x^8}\)+\(\dfrac{8}{1+x^8}\)+\(\dfrac{16}{1+x^{16}}\)
=\(\dfrac{16}{1-x^{16}}\)+\(\dfrac{16}{1+x^{16}}\)
=\(\dfrac{32}{1-x^{32}}\)
NK
1
5 tháng 12 2015
a) x =5 -13 -8 = -8-8 = -16
b) /x+1/ = 3 -1 =2 => x+1 =2 => x =2-1 =1
hoặc x +1 =-2 => x =-3
Vây x =1 ; -3
c) /x/ = 12 -8
/x/ =4 => x =4 hoặc x =-4
8 tháng 8 2017
1. Would you mind if I turned on the TV?
2. Would you mind consetting this composition for me?
3. Do you mind if I take a photo of your study corner?
4. Do you mind if I give some advice on your study habit?
5. Do you mind playing the tape once more?
8 tháng 8 2017
1. Do you mind if I turn on the TV?
2. Do you mind corecting this composition for me?
3. Do you mind if I take a photo of your study corner?
4. Do you mind if I give some advice on your study habit?
5. Do you mind playing the tape once more?
6. Do you mind if I borrow your dictionary?
7. Would you mind if I had a look at your homework?
8. Would you mind telling me how you learned English at school?
9. Do you mind if I use your computer for one hours?
10. Would you mind solving this math problem for me?
NL
1
11 tháng 12 2022
\(=\dfrac{a+b+a-b}{a^2-b^2}+\dfrac{2a}{a^2+b^2}+\dfrac{4a^3}{a^4+b^4}+\dfrac{8a^7}{a^8+b^8}\)
\(=\dfrac{2a^3+2a^2b^2+2a^3-2ab^2}{a^4-b^4}+\dfrac{4a^3}{a^4+b^4}+\dfrac{8a^7}{a^8+b^8}\)
\(=\dfrac{4a^7+4a^3b^4+4a^7-4a^3b^4}{a^8-b^8}+\dfrac{8a^7}{a^8+b^8}\)
\(=\dfrac{8a^7}{a^8-b^8}+\dfrac{8a^7}{a^8+b^8}\)
\(=\dfrac{8a^{15}+8a^7b^8+8a^{15}-8a^7b^8}{a^{16}-b^{16}}=\dfrac{16a^{15}}{a^{16}-b^{16}}\)
had remembered
had remembered