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Mathematics
Mathematics
Problem
Determine
f
(
6
)
(
x
)
\displaystyle f^{(6)}(x)
f
(
6
)
(
x
)
for
f
(
x
)
=
cos
x
f(x)=\cos x
f
(
x
)
=
cos
x
. a)
−
cos
6
x
-\cos 6x
−
cos
6
x
b)
cos
x
\cos x
cos
x
c)
−
cos
x
-\cos x
−
cos
x
d)
sin
x
\sin x
sin
x
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