计算(n!)^2/(A(n-2,n)*A(n-3,n))=?若C(4,x)=2C(3,x-1),则x=?若n为满足不等式...计算(n!)^2/(A(n-2,n)*A(n-3,n))=?若C(4,x)=2C(3,x-1),则x=?若n为满足不等式C(3,n)>C(5,
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/30 11:31:12
xTn@'RQŎ/`UwAD<R"B4|N섧܄Zy̙Gaߢq}v\㰈I)Pk:F*)uDN'OʲISJ͜~|lp0|(y߽O&IwFeFhbˑ)\eo++ڔm'lp{m;[+ r5z-]'ʤWϩ{eCp(ؤ6tt.quMWLU/@Ŏi`J fD:&hPM7CXE!14WS*Vb]%:/K%FUDC˓6XZqgfl0؍)<;ZoIH> .9OnNء!"pŠm,
计算:(-a^2)^n
(3a^(n+1)+6a^(n+2)-9a^n)/3a^(n-1)是计算
求极限,N趋向无穷,n^2 ((a+1/n)^(1/n)-a^(1/n))n^2 *((a+1/n)^(1/n)-a^(1/n))
计算极限lim (a^n-a^-n)/(a^n+a^-n) a>0
计算:(3a^n+2+6a^n+1-9^n)÷3a^n-1
(2分之3a^n+3 -2a^n+1)÷(-3分之1a^n-1) 计算
(1/3a^ n+2 +2a^n+1) ÷ (-1/3 a ^ n-1 ) 计算
已知n是正整数,计算(-1)^2n,(-1)^2n-1,(-a)^2n,(-a)^2n+1的值急用
1/3a^2n -(-7a^n)+(-1)^2n+1 a^n -(2/5a^2n)-5a^n(n为正整数)
计算 (3A^N+2*B-2A^N*B^N-1+3B^N)*5A^N*B^N+3(N为正整数,n>1)
计算a^n=2 b^n=3 a^2n+b^3n=( )
已知a=-b,m=1/n,计算(a+b)n/m+(-2m)*n的值
[(a^2*a^n)^2(b^n*b)]^2计算
计算:(a^n+1)^2×(-a^3)^2n+1
a^n+2-18a^n+81a^n-2(n>2且n为整数)因式分解
因式分解:a^(n+2)-8a^n+16a^(n-2),(n大于n为整数)
(a-1)+(a^2-2)+.+(a^n-n)求和
(-a)^2n+1 +a*(-a)^2n 化简?