Technical information
Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Racionalitza [fraction numerator # b over denominator # c square root of # a minus square root of # b end root end fraction] i digues quina de les següents n'és una expressió equivalent: : 10·7^(1/2)/39+10^(1/2)/39; 5·7^(1/2)/3+10^(1/2)/6; 10·7^(1/2)/69+10^(1/2)/69
Right answer summary: 10·7^(1/2)/69+10^(1/2)/69
Question state: todo