Summary (Grade 11 NSC Matric Mathematics): Quizzes

$\cos^2 θ + \sin^2 θ = 1$

$\tan θ = \frac{\sin θ}{\cos θ}$

Side a

$\cos θ$

$\cos θ$

Sine only

Two angles & a side OR two sides & non-included angle

Two sides & included angle OR all three sides

$\frac{1}{2}bc \sin A$

$180°$