Cheatsheet

128. Cheatsheet

Formulas for:

Function	Definition	Reciprocal
$sin (𝑥)$	$\frac{opposite}{hypotenuse}$	$\frac{1}{sin (𝑥)} = csc (𝑥)$
$cos (𝑥)$	$\frac{adjacent}{hypotenuse}$	$\frac{1}{cos (𝑥)} = sec (𝑥)$
$tan (𝑥)$	$\frac{sin (𝑥)}{cos (𝑥)} = \frac{opposite}{adjacent}$	$\frac{1}{tan (𝑥)} = cot (𝑥)$
$csc (𝑥)$	$\frac{sin (𝑥)}{cos (𝑥)} = \frac{hypotenuse}{opposite}$	$\frac{1}{csc (𝑥)} = sin (𝑥)$
$sec (𝑥)$	$\frac{hypotenuse}{adjacent}$	$\frac{1}{sec (𝑥)} = cos (𝑥)$
$cot (𝑥)$	$\frac{cos (𝑥)}{sin (𝑥)} = \frac{adjacent}{opposite}$	$\frac{1}{cot (𝑥)} = tan (𝑥)$

geometric_formulas