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Mathematics
Mathematics
Problem
Given
cos
x
=
−
3
5
\cos x=-\dfrac{3}{5}
cos
x
=
−
5
3
with
x
∈
(
π
/
2
,
π
)
x\in(\pi/2,\,\pi)
x
∈
(
π
/2
,
π
)
, calculate
tan
x
\tan x
tan
x
. a)
−
3
4
-\dfrac{3}{4}
−
4
3
b)
4
3
\dfrac{4}{3}
3
4
c)
−
4
3
-\dfrac{4}{3}
−
3
4
d)
−
5
3
-\dfrac{5}{3}
−
3
5
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