Given generating function $G(x)=\frac{3+78x}{1-3x-54x^2}$, find the corresponding sequence $\{a_n\}$ A: $\{a_n\}=7*(-9)^n+4*6^n$ B: $\{a_n\}=7*9^n-4*6^n$ C: $\{a_n\}=7*9^n-4*(-6)^n$ D: $\{a_n\}=7*(-9)^n-4*6^n$ E: $\{a_n\}=7*(-9)^n+4*(-6)^n$ F: $\{a_n\}=7*(-9)^n-4*(-6)^n$
Given generating function $G(x)=\frac{3+78x}{1-3x-54x^2}$, find the corresponding sequence $\{a_n\}$ A: $\{a_n\}=7*(-9)^n+4*6^n$ B: $\{a_n\}=7*9^n-4*6^n$ C: $\{a_n\}=7*9^n-4*(-6)^n$ D: $\{a_n\}=7*(-9)^n-4*6^n$ E: $\{a_n\}=7*(-9)^n+4*(-6)^n$ F: $\{a_n\}=7*(-9)^n-4*(-6)^n$
【计算题】5 ×8= 6×4= 7×7= 9×5= 2×3= 9 ×2= 8×9= 7×8= 5×5= 4×3= 5+8= 6 ×6= 3×7= 4×8= 9×3= 1 ×2= 9×9= 6×8= 8×0= 4×7=
【计算题】5 ×8= 6×4= 7×7= 9×5= 2×3= 9 ×2= 8×9= 7×8= 5×5= 4×3= 5+8= 6 ×6= 3×7= 4×8= 9×3= 1 ×2= 9×9= 6×8= 8×0= 4×7=
以下程序输出结果为( )int n = 10;while(n>7){ n--; printf("%d ",n);} A: 10 9 8 B: 9 8 7 C: 10 9 8 7 D: 9 8 7 6
以下程序输出结果为( )int n = 10;while(n>7){ n--; printf("%d ",n);} A: 10 9 8 B: 9 8 7 C: 10 9 8 7 D: 9 8 7 6
计算并输出9的阶乘。 jx=1 n=1 do while jx=jx*n enddo 9!=’+’1*2*3*4*5*6*7*8*9=’+’
计算并输出9的阶乘。 jx=1 n=1 do while jx=jx*n enddo 9!=’+’1*2*3*4*5*6*7*8*9=’+’
下列数组声明语句中,不正确的是_________。 A: Dim a(9) As Single = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} B: Dim a() = {1, 2, 3, 4, 5, 6, 10} C: Dim a( ,) As Single = {{1, 2, 3, 4, 5}, {6, 7, 8, 9, 10}} D: Dim a() As Single = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} E: Dim n As Integer=10Dim a(n) As Single
下列数组声明语句中,不正确的是_________。 A: Dim a(9) As Single = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} B: Dim a() = {1, 2, 3, 4, 5, 6, 10} C: Dim a( ,) As Single = {{1, 2, 3, 4, 5}, {6, 7, 8, 9, 10}} D: Dim a() As Single = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} E: Dim n As Integer=10Dim a(n) As Single
○最大能填几?○×3<25○×6<37○×4<29○×2<17○×3<19○×6<39○×9<65○×7<58○×8<65○×5<48○×9<37○×6<55
○最大能填几?○×3<25○×6<37○×4<29○×2<17○×3<19○×6<39○×9<65○×7<58○×8<65○×5<48○×9<37○×6<55
短时记忆的容量是______个组块。 A: 5~7 B: 7~9 C: 7 D: 5~9
短时记忆的容量是______个组块。 A: 5~7 B: 7~9 C: 7 D: 5~9
有以下程序段: int n=10; while(n>7) { n--; printf("%d\n",n); } 程序段的输出结果是 A: 10 9 8 B: 9 8 7 C: 10<br> 9 8 7 D: 9 8 7 6
有以下程序段: int n=10; while(n>7) { n--; printf("%d\n",n); } 程序段的输出结果是 A: 10 9 8 B: 9 8 7 C: 10<br> 9 8 7 D: 9 8 7 6
5-1,对于下列代码,输入是1 3 5 7 9,那么 a 的值是什么?a = input().split() A: 1 B: 1 3 5 7 9 C: [1, 3, 5, 7, 9] D: ['1', '3', '5', '7', '9']
5-1,对于下列代码,输入是1 3 5 7 9,那么 a 的值是什么?a = input().split() A: 1 B: 1 3 5 7 9 C: [1, 3, 5, 7, 9] D: ['1', '3', '5', '7', '9']
已知列表x=[3, 5, 6, 7, 9],那么x[::-1]的结果是 A: [3, 9] B: [3, 5, 6, 7, 9] C: [3, 5, 6, 7] D: [9, 7, 6, 5, 3]
已知列表x=[3, 5, 6, 7, 9],那么x[::-1]的结果是 A: [3, 9] B: [3, 5, 6, 7, 9] C: [3, 5, 6, 7] D: [9, 7, 6, 5, 3]