Q. For the following equation, find f′(x).f(x)=−4x4+xAnswer: f′(x)=
Apply Power Rule: To find the derivative of the function f(x)=−4x4+x, we will apply the power rule for differentiation. The power rule states that the derivative of xn with respect to x is n⋅x(n−1).
Differentiate −4x4: Differentiate the term −4x4. Using the power rule, the derivative of −4x4 with respect to x is −4×4x(4−1) which simplifies to −16x3.
Differentiate x: Differentiate the term x. The derivative of x with respect to x is 1, since the power rule states that the derivative of x1 is 1×x(1−1) which simplifies to 1.
Combine Derivatives: Combine the derivatives of the individual terms to find the derivative of the entire function. The derivative of f(x)=−4x4+x is f′(x)=−16x3+1.