A=(2-1-112,11-214,4-62-24,36-979)用初等行变换将A化为行最简形

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A=(2-1-112,11-214,4-62-24,36-979)用初等行变换将A化为行最简形
a+a+1+a+2+a+3+a+4+a+5+a+6+a+7.+a+2013+a+2014=?

a+a+1+a+2+a+3+a+4+a+5+a+6+a+7.+a+2013+a+2014=?a+a+1+a+2+a+3+a+4+a+5+a+6+a+7.+a+2013+a+2014=?a+a+1+a+2+a+3+a+4+a+5+a+6+a+

若a(a+1)=3,求3a(2a²-4a+3)-2a²(3a+4)+a(11a-

若a(a+1)=3,求3a(2a²-4a+3)-2a²(3a+4)+a(11a-18)的值.若a(a+1)=3,求3a(2a²-4a+3)-2a²(3a+4)+a(11a-18)的值.若a(a+1)=

a-2a+3a-4a+5a-6a+7a-8a+9a-10a+11a.+99a-100a=

a-2a+3a-4a+5a-6a+7a-8a+9a-10a+11a.+99a-100a=a-2a+3a-4a+5a-6a+7a-8a+9a-10a+11a.+99a-100a=a-2a+3a-4a+5a-6a+7a-8a+9a-10a+11

已知a*a+4a+1=0,且(a*a*a*a-ma*a+1)/(2a*a*a+ma*a+2a)=3

已知a*a+4a+1=0,且(a*a*a*a-ma*a+1)/(2a*a*a+ma*a+2a)=3求m的值拜托各位大神已知a*a+4a+1=0,且(a*a*a*a-ma*a+1)/(2a*a*a+ma*a+2a)=3求m的值拜托各位大神已知

[(a/a-2)-(a/a+2)]÷4a/2-a,其中a=-1/2

[(a/a-2)-(a/a+2)]÷4a/2-a,其中a=-1/2[(a/a-2)-(a/a+2)]÷4a/2-a,其中a=-1/2[(a/a-2)-(a/a+2)]÷4a/2-a,其中a=-1/2=[a(a+2)-a(a-2)/(a+2)

a=-1 求a-2a+3a-4a+5a-6a+...+99a-100a

a=-1求a-2a+3a-4a+5a-6a+...+99a-100aa=-1求a-2a+3a-4a+5a-6a+...+99a-100aa=-1求a-2a+3a-4a+5a-6a+...+99a-100aa-2a+3a-4a+5a-6a+.

(高一集合)已知A={2,4,a*a*a-2a*a-a+7},B={1,a+3,a*a-2a+2,a

(高一集合)已知A={2,4,a*a*a-2a*a-a+7},B={1,a+3,a*a-2a+2,a*a*a+a*a+3a+7}且A与B的交集为{2,5},求A与B的并集.抱歉,不过,好像你的与答案不一样,还有,为什么不讨论a*a-2a+2

代数已知a^2-4a+1=0,则(2a^5-7a^4+a^3-11a^2+7a)/(3a^2+3)的

代数已知a^2-4a+1=0,则(2a^5-7a^4+a^3-11a^2+7a)/(3a^2+3)的值是_________.注:代数已知a^2-4a+1=0,则(2a^5-7a^4+a^3-11a^2+7a)/(3a^2+3)的值是____

已知a^2-4a+1=0,求[2a^5-7a^4+a^3-11a^2+7a]/[3a^2+3]

已知a^2-4a+1=0,求[2a^5-7a^4+a^3-11a^2+7a]/[3a^2+3]已知a^2-4a+1=0,求[2a^5-7a^4+a^3-11a^2+7a]/[3a^2+3]已知a^2-4a+1=0,求[2a^5-7a^4+a

已知1+a+a^2+a^3=0,求a+a^2+a^3+a^4+a^5+a^6+a^7+a^8+.+a

已知1+a+a^2+a^3=0,求a+a^2+a^3+a^4+a^5+a^6+a^7+a^8+.+a^2008的值已知1+a+a^2+a^3=0,求a+a^2+a^3+a^4+a^5+a^6+a^7+a^8+.+a^2008的值已知1+a+

(a-2/a^2+2a-a-1/a^2+4a+4)除以a-4/a+2,其中a满足a^2+2a-1=0

(a-2/a^2+2a-a-1/a^2+4a+4)除以a-4/a+2,其中a满足a^2+2a-1=0(a-2/a^2+2a-a-1/a^2+4a+4)除以a-4/a+2,其中a满足a^2+2a-1=0(a-2/a^2+2a-a-1/a^2+

先化简后,再求值:(a-2/a*a+2a-a-1/a*a+4a+4)/a-4/a+2其中a=根号2-

先化简后,再求值:(a-2/a*a+2a-a-1/a*a+4a+4)/a-4/a+2其中a=根号2-1先化简后,再求值:(a-2/a*a+2a-a-1/a*a+4a+4)/a-4/a+2其中a=根号2-1先化简后,再求值:(a-2/a*a+

化简后,求值:a×2a×3a×4a×5a×(a+2a+3a+4a+5a),其中a³=1/3

化简后,求值:a×2a×3a×4a×5a×(a+2a+3a+4a+5a),其中a³=1/3化简后,求值:a×2a×3a×4a×5a×(a+2a+3a+4a+5a),其中a³=1/3化简后,求值:a×2a×3a×4a×5a

a+a^2+a^3+a^4+a^5+a^6...+a^n=a^n+1-a/a-1 (a-1)≠0

a+a^2+a^3+a^4+a^5+a^6...+a^n=a^n+1-a/a-1(a-1)≠0a+a^2+a^3+a^4+a^5+a^6...+a^n=a^n+1-a/a-1(a-1)≠0a+a^2+a^3+a^4+a^5+a^6...+a

当a=1时,a-2a+3a-4a+5a…+99a-100a=

当a=1时,a-2a+3a-4a+5a…+99a-100a=当a=1时,a-2a+3a-4a+5a…+99a-100a=当a=1时,a-2a+3a-4a+5a…+99a-100a=当a=1时,a-2a+3a-4a+5a…+99a-100a=

(2a*a-4a+1)-( )=4a*a-8a+2

(2a*a-4a+1)-()=4a*a-8a+2(2a*a-4a+1)-()=4a*a-8a+2(2a*a-4a+1)-()=4a*a-8a+2(2a*a-4a+1)-()=4a*a-8a+2,其实就是(2a*a-4a+1)-(4a*a-8

a²-1/a²-2a + 4a-5/2a-a²=

a²-1/a²-2a+4a-5/2a-a²=a²-1/a²-2a+4a-5/2a-a²=a²-1/a²-2a+4a-5/2a-a²=是俩个分子式吧&n

a²-1/a²-2a + 4a-5/2a-a²=

a²-1/a²-2a+4a-5/2a-a²=a²-1/a²-2a+4a-5/2a-a²=a²-1/a²-2a+4a-5/2a-a²==(a^2-1-4

已知a=11,b=1/11,代数式a+2a+3a+4a+.+9a+10a+10b+9b+8b+.+3

已知a=11,b=1/11,代数式a+2a+3a+4a+.+9a+10a+10b+9b+8b+.+3b+2b+b的值是已知a=11,b=1/11,代数式a+2a+3a+4a+.+9a+10a+10b+9b+8b+.+3b+2b+b的值是已知

1=5a,2=8a,3=11a,4=14a,n=?a

1=5a,2=8a,3=11a,4=14a,n=?a1=5a,2=8a,3=11a,4=14a,n=?a1=5a,2=8a,3=11a,4=14a,n=?an=(2+3n)a