已知a=0.0...025,25个0 b=0.0...04 25个0 求:(1)a*b (2)a/b
已知a=0.0...025,25个0 b=0.0...04 25个0 求:(1)a*b (2)a/b
已知a=0.0.012 ,199个0,b=0.0.25,100个0,c=0.0.8,100个0,求a,b,c等于
已知a=0.000...025是100个0,b=0.000...04也是100个0,求a×b
已知a=0.00...(2000个0)0125,b=0.00...(2004个0)08,求:a+b,b-a.
已知a^2+b^2-6a-8b+25=0,试求代数式(1+b/a-a/a-b)/(1-b/a-a/a+b)的值.
已知2a-b+1的绝对值+(3a+3/2b)^=0,求(b^/a+b)÷{[(b/a-b)+1][a-(a^/a+b)]
a=0.00.0125(1984个0),b=0.00.08(1988个0)试求:a+b,a-b,a*b,a/b
已知|2a-b+1|+(3a+3/2b)^2=0求b^2/a+b/{(a/a-b-1)(a-a^2/a+b)}
已知|2a-b+1|+(3a+3/2b)^2=0求[b^2/a+b]/[(a/a-b-1)][(a-a^2/a-b)}
已知a^2+b^2-6a-8b+25=0,求代数式b/a - a/b的值
已知a^2+b^2-6a-8b+25=0 求分式b/a -a/b的值
a=0.000 04(1997个0),b=0.000 025(1997个0),求a÷b=?