Technical information
Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Racionalitza [fraction numerator # b over denominator # c square root of # a end fraction] i digues quina de les següents n'és una expressió equivalent: : -9·5^(1/2)/5; 3·5^(1/2); -9·5^(1/2)
Right answer summary: -9·5^(1/2)/5
Question state: todo