FP2 - Unit 6 Flashcards
1
Q
What are the coordinates of a polar graph?
A
(r,Θ) radius, angle.
2
Q
What are the angles on a polar graph measured in?
A
Radians
3
Q
How to find Θ from cartesian (x,y)
A
tanΘ = x/y
4
Q
How to find r from cartesian (x,y)
A
r = √ x²y²
5
Q
How to find x from polar (r,Θ)
A
rcosΘ
6
Q
How to find y from polar (r,Θ)
A
rsinΘ
7
Q
How to prove α is a line of symmetry on a graph?
A
Prove that f(2α - Θ) = f(Θ)
8
Q
How to integrate a region bound by a polar graph?
A
1/2 ∫r² dΘ
9
Q
How to find a tangent to a pole?
A
Find Θ where r=0
