Identify Function: Identify the function to differentiate.We are given the function y=3cot3(x), which means y is equal to three times the cube of the cotangent of x.
Apply Chain Rule: Apply the chain rule for differentiation.The chain rule states that the derivative of a composite function is the derivative of the outer function evaluated at the inner function times the derivative of the inner function. In this case, the outer function is f(u)=3u3 and the inner function is u(x)=cot(x). We need to find the derivative of both functions.
Differentiate Outer Function: Differentiate the outer function f(u)=3u3 with respect to u. The derivative of f(u) with respect to u is f′(u)=3×3u3−1=9u2.
Differentiate Inner Function: Differentiate the inner function u(x)=cot(x) with respect to x. The derivative of cot(x) with respect to x is −csc2(x), where csc(x) is the cosecant of x.
Apply Chain Rule with Derivatives: Apply the chain rule using the derivatives from steps 3 and 4.dxdy=f′(u)⋅dxdu=9u2⋅(−csc2(x))=9cot2(x)⋅(−csc2(x)).
Substitute Back to x: Substitute u back with cot(x) to get the derivative in terms of x.dxdy=9cot2(x)⋅(−csc2(x))=−9cot2(x)csc2(x).
Check for Errors: Check for any mathematical errors in the differentiation process.No mathematical errors were made in the differentiation process.
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