Summary (Grade 12 NSC Matric Mathematics): Quizzes

$\cos^2\theta + \sin^2\theta = 1$

$\frac{1}{2}$

$1 : 1 : \sqrt{2}$

Quadrant 1

$\sin\theta$

$\cos\theta$

$180°$

Two sides and included angle

$a^2 = b^2 + c^2 - 2bc \cos A$

$\sin(2\theta) = 2 \sin\theta \cos\theta$