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Problem
Problem
If the equation
x
2
+
4
x
sin
θ
+
tan
θ
=
0
x^2 + 4x \sin \theta + \tan \theta = 0
x
2
+
4
x
sin
θ
+
tan
θ
=
0
(
0
<
θ
<
π
2
)
(0 < \theta < \frac{\pi}{2})
(
0
<
θ
<
2
π
)
has repeated roots, then find the value of
θ
\theta
θ
.
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