已知实数a,b满足ab=1,M=a/(a+1)+
已知实数a、b满足ab=1,记M=11+a
已知实数a,满足ab=1,M=a1+a+b1+b
已知实数a,b满足条件a*a+b*b+a*ab*b=4ab-1
已知实数a,b满足ab=1,M= a/a+1 + b/b+1 ,N= 1/a+1 + 1/b+1
已知实数ab满足1/a+1/b=5/a+b,求分式b/a+a/b的值.
已知实数a,b满足:a^2+b^2=ab+a+b-1,求a+b之值
已知:实数a.b满足条件根号a-1+(ab-2)的平方=0
已知实数ab满足ab=1,a+b=2,求代数式a^2b+ab^2的值
已知实数a,b满足ab=-1/5,a+b=4/5,求a^2b+ab^2-a^3b^2-a^2b^3
已知实数a、b满足a(a+1)-(a²+2ab)=1,求a²-4ab+4b²-2a+4b的
已知实数a,b满足 a2+b2=ab+a+b-1,求a+b的值.
已知实数a,b满足a^2+b^2=1,则a^4+ab+b^4的最小值是?