Maths

n = a + (n-1)d

$fd=\frac{f}{cw}$

$cosA= \frac{b^2 + c^2 - a^2}{2bc}$

graph moves up/down the y axis

graph moves along x-axis the opposite way to the sign

flips graph across x-axis

flips graph across y-axis

y-coordinates are multiplied by a

when a is increased, number of waves increases proportionally

$\frac{360}{n}$

$\frac{(n-2) \times 180}{n}$