Find the Derivative - d/d@VAR f(x)=cos(x)

Problem

d(cos(x))/d(x)

Solution

1. Identify the function to be differentiated, which is ƒ(x)=cos(x)

2. Apply the differentiation rule for the cosine function, which states that the derivative of cos(x) with respect to x is −sin(x)

Final Answer

d(cos(x))/d(x)=−sin(x)

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