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Mathematics
Mathematics
Problem
If
tan
x
=
−
4
3
\tan x = -\frac{4}{3}
tan
x
=
−
3
4
,
3
π
2
<
x
<
2
π
\frac{3\pi}{2} < x < 2\pi
2
3
π
<
x
<
2
π
, find the value of
9
sec
2
x
−
4
cot
x
9 \sec^2 x - 4 \cot x
9
sec
2
x
−
4
cot
x
.
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