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Mathematics
Mathematics
Problem
Let
θ
=
−
215
∘
\theta=-215^\circ
θ
=
−
21
5
∘
. Answer the following questions. a. (i) Identify the quadrant in which
θ
\theta
θ
lies. b. (ii) State, with reason, whether
sin
θ
\sin\theta
sin
θ
,
cos
θ
\cos\theta
cos
θ
and
tan
θ
\tan\theta
tan
θ
are positive or negative. c. (iii) Determine the reference angle of
θ
\theta
θ
in degrees.
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