Trig Identities/Parametric

csc (x)

1/sin(x)

sec(x)

1/cos(x)

cot(x)

1/tan(x)

sin² (x)+cos² (x)

1

sec² (x)

1+tan² (x)

csc² (x)

1+cot² (x)

as x approaches 0, sin (x)/x

1

1st derivative

dy/dt / dx/dt

2nd derivative

dy ‘/dt / dx/dt

Speed

sqrt (dx/dt)²+(dy/dt)²h