d/dx [cos x]
To find the derivative of the function f(x) = cos(x), we can use the derivative rules
To find the derivative of the function f(x) = cos(x), we can use the derivative rules.
The derivative of the cosine function, denoted as cos(x), is given by:
d/dx [cos(x)] = -sin(x)
Therefore, the derivative of cos(x) is -sin(x).
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