hm... If it's your old address how'd you know..
Unless...
where:
A2=3cos(θ)−5
A
2
3
cos
θ
5
B2=3sin(θ)
B
2
3
sin
θ
A3=3(cos(θ)−sin(θ))
A
3
3
cos
θ
sin
θ
B3=3(cos(θ)+sin(θ))−6
B
3
3
cos
θ
sin
θ
6
c1=p22−25−A22−B22
c
1
p
2
2
25
A
2
2
B
2
2
c2=−16−A23−B23
c
2
16
A
3
2
B
3
2
and need to find all the values of p2
p
2
for which f(θ)=0
f
θ
0
has 2, 4, 6 solutions in [−π,π]
π
π
and no solution. For example, if p2=4
p
2
4
, f(θ)=0
f
θ
0
has 2 solutions in [−π,π]
π
π
. If p2=5
p
2
5
, f(θ)=0
f
θ
0
has 4 solutions. If p2=7
p
2
7
, f(θ)=0
f
θ
0
has 6 solutions. If p2=1
p
2
1
, f(θ)=0
f
θ
0
has no solution.These values follow from the graph of the function f(θ)