Trigonometry - Definitions (Edexcel A-Level Mathematics): Quizzes

$\frac{\text{Opposite}}{\text{Hypotenuse}}$

$\frac{\text{Opposite}}{\text{Adjacent}}$

$\sin \theta$

$\frac{\text{Adjacent}}{\text{Opposite}}$

$1$

The $x$-coordinate

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

$\text{Degrees} \times \frac{\pi}{180}$

$\frac{\sqrt{3}}{2}$

$2\sin A \cos A$