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Problems
Solve
cos
θ
+
cos
3
θ
+
cos
5
θ
+
cos
7
θ
=
0
\cos \theta + \cos 3\theta + \cos 5\theta + \cos 7\theta = 0
cos
θ
+
cos
3
θ
+
cos
5
θ
+
cos
7
θ
=
0
Problem
Solve
cos
θ
+
cos
3
θ
+
cos
5
θ
+
cos
7
θ
=
0
\cos \theta + \cos 3\theta + \cos 5\theta + \cos 7\theta = 0
cos
θ
+
cos
3
θ
+
cos
5
θ
+
cos
7
θ
=
0
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