a*b-2|+(b-1)^2=0
(1)求AB的值
(2)求1/ab+1/(a+1)*(b+1)的值
參考答案:|ab-2|+(b-1)^2=0
ab-2=0
b-1=0
b=1
a=2
1/ab+1/[a+1][b+1]
=1/2+1/3*2
=1/2+1/6
=2/3
a*b-2|+(b-1)^2=0
(1)求AB的值
(2)求1/ab+1/(a+1)*(b+1)的值
參考答案:|ab-2|+(b-1)^2=0
ab-2=0
b-1=0
b=1
a=2
1/ab+1/[a+1][b+1]
=1/2+1/3*2
=1/2+1/6
=2/3