Technical information
Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Ist die Termumformung korrekt? [open parentheses 1 over x plus 1 over y close parentheses open parentheses 1 over x minus 1 over y close parentheses equals 1 over x squared minus 1 over y squared]
Right answer summary: True
Question state: todo