AS Mathematics₇₃₅₆

Understand and use the definitions of sine, cosine and tangent for all arguments; the sine and cosine rules; the area of a triangle in the form $\frac{\mathsf{1}}{\mathsf{2}}\mathit{a}\mathit{b}\mathsf{sin}\mathsf{}\mathit{C}$

Understand and use the sine, cosine and tangent functions; their graphs, symmetries and periodicity.

Understand and use $\mathsf{tan}\mathsf{}\mathit{\theta }\mathsf{\equiv }\frac{\mathsf{sin}\mathsf{}\mathit{\theta }}{\mathsf{cos}\mathsf{}\mathit{\theta }}$

Understand and use ${\mathsf{sin}}^{\mathsf{2}}\mathsf{}\mathit{\theta }\mathsf{+}{\mathsf{cos}}^{\mathsf{2}}\mathsf{}\mathit{\theta }\mathsf{\equiv }\mathsf{1}$

Solve simple trigonometric equations in a given interval, including quadratic equations in sin, cos and tan and equations involving multiples of the unknown angle.