Defining Ratios in the Cartesian Plane (Grade 10 NSC Matric Mathematics): Flashcards

$\frac{y}{r}$

$\frac{x}{r}$

$\frac{y}{x}$

$r^2 = x^2 + y^2$

Always positive (represents distance)

All ratios

Sin and cosec

Tan and cot

Cos and sec

$1$