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Mathematics
Mathematics
Problem
How many distinct values of
θ
\theta
θ
in
0
∘
≤
θ
≤
360
∘
0^{\circ} \le \theta \le 360^{\circ}
0
∘
≤
θ
≤
36
0
∘
satisfy the equation
sin
2
θ
=
sin
θ
\sin 2\theta = \sin \theta
sin
2
θ
=
sin
θ
? a)
3
3
3
b)
5
5
5
c)
4
4
4
d)
6
6
6
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