Q. Given the function f(x)=3−2x3x, find f′(x) in simplified form.Answer: f′(x)=
Identify Function: Identify the function to differentiate.We are given the function f(x)=3−2x3x. We need to find its derivative, which is denoted by 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 its derivative g′(x) is (v(x))2u′(x)v(x)−u(x)v′(x). Here, u(x)=x and v(x)=3−2x3.
Differentiate Functions: Differentiate u(x) and v(x).The derivative of u(x)=x with respect to x is u′(x)=1.The derivative of v(x)=3−2x3 with respect to x is v′(x)=−6x2.
Apply Derivatives: Apply the derivatives to the quotient rule.Using the quotient rule from Step 2, we get:f′(x)=(v(x))2u′(x)v(x)−u(x)v′(x)f′(x)=(3−2x3)21(3−2x3)−x(−6x2)
Simplify Expression: Simplify the expression.Now we simplify the numerator:f′(x)=(3−2x3)23−2x3+6x3f′(x)=(3−2x3)23+4x3