Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Sea un ángulo del segundo cuadrante cuya tangente es [# a]. Hallar su coseno.: [# r 4]; [# r 2]; [# r 3]; [# r 1]
Right answer summary: [# r 1]
Question state: todo
Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Sea un ángulo del segundo cuadrante cuya tangente es [# a]. Hallar su coseno.: [# r 4]; [# r 2]; [# r 3]; [# r 1]
Right answer summary: [# r 1]
Question state: todo