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Mathematics
Mathematics
Problem
Given
cos
x
=
5
13
\cos x=\dfrac{5}{13}
cos
x
=
13
5
and
x
x
x
is an acute angle, find
sin
x
\sin x
sin
x
. a)
5
12
\dfrac{5}{12}
12
5
b)
−
12
13
-\dfrac{12}{13}
−
13
12
c)
12
13
\dfrac{12}{13}
13
12
d)
8
13
\dfrac{8}{13}
13
8
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