Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Que val [sin open parentheses a plus b close parentheses times sin left parenthesis a minus b right parenthesis equals] : cos<mrow><sup><mn>2</mn></sup></mrow><mrow><mfenced><mi>a</mi></mfenced></mrow><mrow><mo>+</mo></mrow>cos<mrow><sup><mn>2</mn></sup></mrow><mrow><mfenced><mi>b</mi></mfenced></mrow>; cos<mrow><sup><mn>2</mn></sup></mrow><mrow><mfenced><mi>a</mi></mfenced></mrow><mrow><mo>-</mo></mrow>cos<mrow><sup><mn>2</mn></sup></mrow><mrow><mfenced><mi>b</mi></mfenced></mrow>; sin<mrow><sup><mn>2</mn></sup></mrow><mrow><mfenced><mi>a</mi></mfenced></mrow><mrow><mo>+</mo></mrow>sin<mrow><sup><mn>2</mn></sup></mrow><mrow><mfenced><mi>b</mi></mfenced></mrow>; sin<mrow><sup><mn>2</mn></sup></mrow><mrow><mfenced><mi>a</mi></mfenced></mrow><mrow><mo>-</mo></mrow>sin<mrow><sup><mn>2</mn></sup></mrow><mrow><mfenced><mi>b</mi></mfenced></mrow>
Right answer summary: sin<mrow><sup><mn>2</mn></sup></mrow><mrow><mfenced><mi>a</mi></mfenced></mrow><mrow><mo>-</mo></mrow>sin<mrow><sup><mn>2</mn></sup></mrow><mrow><mfenced><mi>b</mi></mfenced></mrow>
Question state: todo