Technical information
Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: [cos left parenthesis alpha plus beta right parenthesis space equals]: [cos alpha times cos beta minus sin alpha times sin beta]; [cos alpha times sin beta minus sin alpha times cos beta]; [sin alpha times cos beta plus sin alpha times cos beta]; [cos alpha times cos beta plus sin alpha times sin beta]
Right answer summary: [cos alpha times cos beta minus sin alpha times sin beta]
Question state: todo