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Problem
Problem
Find all
θ
\theta
θ
such that
−
180
∘
≤
θ
≤
180
∘
-180^\circ \le \theta \le 180^\circ
−
18
0
∘
≤
θ
≤
18
0
∘
and: a.
a
cos
θ
=
−
1
10
\cos \theta = -\frac{1}{10}
cos
θ
=
−
10
1
b.
b
sin
θ
=
4
5
\sin \theta = \frac{4}{5}
sin
θ
=
5
4
c.
c
tan
θ
=
−
3
2
\tan \theta = -\frac{3}{2}
tan
θ
=
−
2
3
d.
d
cos
θ
=
0.8
\cos \theta = 0.8
cos
θ
=
0.8
e.
e
tan
θ
=
−
5
6
\tan \theta = -\frac{5}{6}
tan
θ
=
−
6
5
f.
f
sin
θ
=
−
7
11
\sin \theta = -\frac{7}{11}
sin
θ
=
−
11
7
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