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Mathematics
Problem
Evaluate
tan
(
arccos
12
13
)
\tan\bigl(\arccos\dfrac{12}{13}\bigr)
tan
(
arccos
13
12
)
. a)
−
5
12
-\dfrac{5}{12}
−
12
5
b)
12
5
\dfrac{12}{5}
5
12
c)
5
12
\dfrac{5}{12}
12
5
d)
1
12
\dfrac{1}{12}
12
1
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