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Mathematics
Mathematics
Problem
Show that
1
−
sin
θ
cos
θ
=
cos
θ
1
+
sin
θ
\dfrac{1-\sin\theta}{\cos\theta}=\dfrac{\cos\theta}{1+\sin\theta}
cos
θ
1
−
sin
θ
=
1
+
sin
θ
cos
θ
for any acute angle
θ
\theta
θ
.
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