Q. Find the derivative of the following function.y=2−3x6Answer: y′=
Apply Chain Rule: Let's start by applying the chain rule to differentiate the function y=2−3x6. 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.First, we identify the outer function as f(u)=2u and the inner function as u(x)=−3x6.We will need to use the fact that the derivative of 2u with respect to u is 2u⋅ln(2).
Differentiate Outer Function: Now we differentiate the outer function f(u)=2u with respect to u.f′(u)=2u⋅ln(2)
Differentiate Inner Function: Next, we differentiate the inner function u(x)=−3x6 with respect to x.u′(x)=dxd(−3x6)=−18x5
Apply Chain Rule Multiplication: We now apply the chain rule by multiplying the derivative of the outer function by the derivative of the inner function.y′=f′(u)⋅u′(x)=(2−3x6⋅ln(2))⋅(−18x5)
Simplify Final Derivative: Simplify the expression to get the final derivative. y′=−18x5⋅2−3x6⋅ln(2)
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