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Mathematics
Mathematics
Problem
For an acute angle
α
\alpha
α
,
sec
α
=
13
12
\sec \alpha = \dfrac{13}{12}
sec
α
=
12
13
. What is
sin
α
\sin \alpha
sin
α
? a)
5
12
\dfrac{5}{12}
12
5
b)
25
169
\dfrac{25}{169}
169
25
c)
5
13
\dfrac{5}{13}
13
5
d)
12
13
\dfrac{12}{13}
13
12
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