Parametric Equations Flashcards
(9 cards)
1
Q
What is a parameter
A
A third variable (t)
2
Q
Explicit or implicit
A
y = f(x) or not
3
Q
Parametric Equation of Circle
A
Number that comes before trig - radius
Number added to trig, x or y coordinate
4
Q
Eliminating trig paratricity
A
Rearrange for trig
Sub into equality
5
Q
Parametric sketching
A
Find y, x intercept
Find asymtotes (Where there are no solutions)
Location of stationary points
6
Q
How to find verticle tangent
A
This is where dx/dy = 0
7
Q
Parametric integration
A
Solving for t
y dx/dt dt
8
Q
Find area enclosed by loop:
A
If t1>t2 is clockwise, normal
If anticlockwise ||
9
Q
Trig involved
A
Use identities
Remember sqrt
