Q. For the following equation, find f′(x).f(x)=−6x5−9x4+x3+6Answer: f′(x)=
Apply Power Rule: To find the derivative of the function f(x)=−6x5−9x4+x3+6, we will apply the power rule to each term separately. The power rule states that the derivative of xn with respect to x is n⋅x(n−1).
Derivative of −6x5: First, we find the derivative of the term −6x5. Using the power rule, we get:dxd(−6x5)=−6×5×x5−1=−30x4.
Derivative of −9x4: Next, we find the derivative of the term −9x4. Again, using the power rule, we get:dxd(−9x4)=−9×4×x4−1=−36x3.
Derivative of x3: Then, we find the derivative of the term x3. Using the power rule, we get:(dxd)(x3)=3×x(3−1)=3x2.
Derivative of constant: Finally, the derivative of a constant is zero, so the derivative of the term +6 is:dxd(6)=0.
Combine all derivatives: Now, we combine the derivatives of all terms to find the derivative of the entire function f(x):f′(x)=−30x4−36x3+3x2+0.
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