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Mathematics
Mathematics
Problem
If
sin
θ
=
3
5
\sin \theta=\dfrac{3}{5}
sin
θ
=
5
3
for an acute angle
θ
\theta
θ
, what is
cos
θ
\cos \theta
cos
θ
? a)
3
5
\dfrac{3}{5}
5
3
b)
16
25
\dfrac{16}{25}
25
16
c)
4
5
\dfrac{4}{5}
5
4
d)
2
5
\dfrac{2}{5}
5
2
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