√(1-2a^2)+√(1-2b^2)+√(1-2c^2)
化简1/(a+b)√(b/a+a/b+2)化简1/(a+b)√(b/a+a/b+2)化简1/(a+b)√(b/a+a/b+2)1/(a+b)√(b/a+a/b+2)=1/(a+b)√((a^2+b^2+2ab)/ab)=1/(a+b)√(a
b√ab+b√b/a+1/a^2√a^3b^3(其中bb√(ab)+b√(b/a)+1/(a^2)√(a^3)(b^3)(其中bb√ab+b√b/a+1/a^2√a^3b^3(其中bb√(ab)+b√(b/a)+1/(a^2)√(a^3)(
2a³b√a²b×3√a/b÷1/2√b²/a2a³b√a²b×3√a/b÷1/2√b²/a2a³b√a²b×3√a/b÷1/2√b²/a原式=(2a
2a³b√a²b×3√a/b÷1/2√b²/a2a³b√a²b×3√a/b÷1/2√b²/a2a³b√a²b×3√a/b÷1/2√b²/a您好:2a&
(a-b分之a+b-a+b分之a-b)÷1/a²-2ab+b²其中a=2-√3b=2+√3化简求值(a-b分之a+b-a+b分之a-b)÷1/a²-2ab+b²其中a=2-√3b=2+√3化简求值(a
|a-3b|+√2a-1=0,则a*b=.a/b=.2a+6b=.(a为,b为.)|a-3b|+√2a-1=0,则a*b=.a/b=.2a+6b=.(a为,b为.)|a-3b|+√2a-1=0,则a*b=.a/b=.2a+6b=.(a为,b
2a+b=1-√3a+b=-5a、b等于多少?2a+b=1-√3a+b=-5a、b等于多少?2a+b=1-√3a+b=-5a、b等于多少?b=-2a,所以-根号3a-2a=-6,所以a=6除以2+根号3,b=-12除以2+根号3
√a-2b+9和|a-b-1|互为相反数,求a,b√a-2b+9和|a-b-1|互为相反数,求a,b√a-2b+9和|a-b-1|互为相反数,求a,b√a-2b+9=-|a-b-1|√a-2b+9+|a-b-1|=0a-2b+9=0a-b-
化简(2/a^2√a^3b)-(a√1/ab)-(√b/a)+(√a/b+b/a+2)(a>0,化简(2/a^2√a^3b)-(a√1/ab)-(√b/a)+(√a/b+b/a+2)(a>0,b>0),化简(2/a^2√a^3b)-(a√1
(a-b+ab-a^2/a+b)乘以[a+1/a-b乘以(1+a/b)](a-b+ab-a^2/a+b)乘以[a+1/a-b乘以(1+a/b)](a-b+ab-a^2/a+b)乘以[a+1/a-b乘以(1+a/b)][(a-b+ab-a
2a^2-(b-a)a-b(b-1)2a^2-(b-a)a-b(b-1)2a^2-(b-a)a-b(b-1)2a^2-(b-a)a-b(b-1)=2a^2-ab+a^2-b^2+1=3a^2-b^2-ab+1=3a^2-ba-b^2+1有理
(a\2-b)^2-1\4(a+b)(a-b)(a\2-b)^2-1\4(a+b)(a-b)(a\2-b)^2-1\4(a+b)(a-b)-ab+(5/4)b^2(a/2-b)^2-1/4(a+b)(a-b)=a²/4-ab+b&
(a+b)(a+b)+2(a+b)+1因式分解(a+b)(a+b)+2(a+b)+1因式分解(a+b)(a+b)+2(a+b)+1因式分解令u=a+b,则原式=u^2+2u+1=(u+1)^2=(a+b+1)^2(公式)[(a+b)+1]&
计算[(a-b)×根号1/(a-b)]^2(a>b)计算[(a-b)×根号1/(a-b)]^2(a>b)计算[(a-b)×根号1/(a-b)]^2(a>b)原式=(a-b)^2*1/(a-b)=a-b
若a,b∈R+,求证:1/2(a+b)2+1/4(a+b)≥a√b+b√a若a,b∈R+,求证:1/2(a+b)2+1/4(a+b)≥a√b+b√a若a,b∈R+,求证:1/2(a+b)2+1/4(a+b)≥a√b+b√a(a+b)^2/2
若a>1,b>0,且a^b+a^(-b)=2√2,则a^2b+a^(-2b)=?若a>1,b>0,且a^b+a^(-b)=2√2,则a^2b+a^(-2b)=?若a>1,b>0,且a^b+a^(-b)=2√2,则a^2b+a^(-2b)=?
(a+b)^2+2(a+b)+1(a+b)^2+2(a+b)+1(a+b)^2+2(a+b)+1(a+b)^2+2(a+b)+1=(a+b+1)^2(a+b+1)^2
a-b\a+b=1\2时,求代数式a+b\3(a-b)-a-b\2(a+b)a-b\a+b=1\2时,求代数式a+b\3(a-b)-a-b\2(a+b)a-b\a+b=1\2时,求代数式a+b\3(a-b)-a-b\2(a+b)a-b\a+
计算ab/(a+b-1)(a+b)+ab/(a+b)(a+b+1)+ab/(a+b+1)(a+b+2)+.+ab/(a+b+98)(a+b+99)+ab/(a+b+99)(a+b+100)其中a、b满足:-(8的a次方)的平方÷4的5-2b
ab/(a+b-1)(a+b)+ab/(a+b)(a+b+1)+ab/(a+b+1)(a+b+2)+…+ab/(a+b+98)(a+b+99)+ab/(a+b+99)(a+b+100)的值a=1b=-3ab/(a+b-1)(a+b)+ab/