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Mathematics
Problem
What is the derivative of
cos
x
\cos x
cos
x
with respect to
x
x
x
? a)
sin
x
\sin x
sin
x
b)
cos
x
\cos x
cos
x
c)
−
sin
x
-\sin x
−
sin
x
d)
−
cos
x
-\cos x
−
cos
x
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