–Angelaweare.Wouldyoulikesome?--.Ihavetoleavenow.A.doinghomework;YesgoaheadB.playingcards;YespleaseC.makingsomedumplings;
– Angela we are___________. Would you like some? -- __________. I have to leave now.
A. doing homework; Yes go ahead B. playing cards; Yes please
C. making some dumplings; No thanks D. flying kites; I’m afraid not.
C
北回归线、30°N、35°N、40°N、45°N、90°E、100°E、105°E、110°E和1 2020-05-17 …
f(x)=e^x-kx,设函数F(x)=f(x)+f(-x),求证F(1)F(2)……F(n)>[ 2020-05-21 …
纵横字谜之英语暑假作业题(s)(o)(r)(r)(n)(g)(r)(e))(a)(k)(k)(e) 2020-06-06 …
矩阵(E+A)^n等于什么?看到一个二阶的矩阵n次方=E^n+n(E)^(n-1)A,三阶的n次方 2020-06-12 …
lim(x趋于0时)[(e^x+e^2x+e^3x+……e^nx)/n]^(1/x)的极限;我自己 2020-06-12 …
–Angelaweare.Wouldyoulikesome?--.Ihavetoleavenow. 2020-07-13 …
写单词,这些单词打乱顺序了!:1.d,f,e,n,i,f,e,r,t,()2.g,h,o,e,t, 2020-07-26 …
求助:矩阵和的n次方解法比如(3E+B)^n=(3E)^n+n*(3E)^(n-1)*B(E+B) 2020-07-29 …
求助:矩阵和的n次方解法比如(3E+B)^n=(3E)^n+n*(3E)^(n-1)*B(E+B) 2020-07-29 …
求证e^i(4π/n)+e^i(8π/n)+...+e^i4(n-1)π/n+e^i(4nπ/n)= 2020-11-01 …