若实数a,b满足1/2a-ab+b*b+2=0,则a 的取值范围是（ ）Aa=4 C.a=4 D.-21/2a-ab+b*b+2=0 应该是（1/2）a-ab+b*b+2=0

若实数ab满足a³+b³+3ab=1,则a+b= 若实数ab满足根号a-2与b²+b+1/4 若任意实数a,b满足a^2b^2+a^2+b^2-4ab+1=0 求b/a+a/b 若实数a,b满足a+b 若实数A,B满足A/|a|+b/|b|=0,则AB/|AB|= 实数a,b满足a²+b²+ab+1=a-b 则2a-b= 已知实数a,b满足：a+b=1,ab=-2,求b/a+a/b的值. 已知实数a,b满足ab 已知实数a,b满足ab 实数a.b满足-1 实数a,b,c满足a^2+ab+ac 已知实数a、b满足ab=1,a+b=2,求a^2b+ab^2的值 已知实数a、b满足ab=1,a+b=2求代数式a²b+ab² 若实数a.b满足ab-4a-b+1=o(a>1),求实数(a+1)*(b+2)的最小值 若ab + 1 >a + b,则实数a,b应满足的条件是______________ 已知实数A,B满足A+B=2;AB=1,求代数式的值 若实数a、b满足|a-b|+（1/2a-1)^2=0,求1+ab的值 实数a,b满足a*a*a+b*b*b+3ab=1,则a+b= ,