Q. Given the function f(x)=1+x36−x, find f′(x) in simplified form.Answer: f′(x)=
Identify function: Identify the function to differentiate.We have the function f(x)=1+x36−x. We need to find its derivative, denoted as f′(x).
Apply quotient rule: Apply the quotient rule for differentiation.The quotient rule states that if we have a function g(x)=v(x)u(x), then g′(x)=(v(x))2u′(x)v(x)−u(x)v′(x). Here, u(x)=6−x and v(x)=1+x3.
Differentiate u and v: Differentiate u(x) and v(x).u′(x)=−1, since the derivative of 6 is 0 and the derivative of −x is −1.v′(x)=3x2, since the derivative of v0 is 0 and the derivative of v2 is v3.
Apply quotient rule: Apply the quotient rule using the derivatives from Step 3.f′(x)=(1+x3)2(−1)(1+x3)−(6−x)(3x2).
Expand and simplify: Expand and simplify the numerator of the derivative. f′(x)=(1+x3)2−1−x3−18x2+3x3.
Combine like terms: Combine like terms in the numerator.f′(x)=(1+x3)2−1−18x2+2x3.
Check for simplification: Check for any possible simplification.The numerator and denominator are already in their simplest form, so no further simplification is possible.
More problems from Find the vertex of the transformed function