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Mathematics
Mathematics
Problem
If
sin
θ
=
5
13
\sin\theta=\dfrac{5}{13}
sin
θ
=
13
5
and
θ
\theta
θ
is acute, find
cos
θ
\cos\theta
cos
θ
. a)
8
13
\dfrac{8}{13}
13
8
b)
12
13
\dfrac{12}{13}
13
12
c)
13
12
\dfrac{13}{12}
12
13
d)
5
13
\dfrac{5}{13}
13
5
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