Q. Find the derivative of the following function.y=log3(3x2+8x)Answer: y′=
Recognize Function Type: Recognize that the function y=log3(3x2+8x) is a logarithmic function with a base other than e. To find the derivative, we will use the change of base formula and the chain rule.
Apply Change of Base: Apply the change of base formula to rewrite the function in terms of the natural logarithm (ln).y=log3(3x2+8x) can be rewritten as y=ln(3)ln(3x2+8x).
Use Chain Rule: Differentiate the function using the chain rule. The derivative of ln(u) with respect to x is u1⋅dxdu, where u is a function of x.Let u=3x2+8x, then dxdu=6x+8.
Compute Derivative: Compute the derivative of y with respect to x.y′=dxd[ln(3)ln(3x2+8x)]=ln(3)1⋅dxd[ln(3x2+8x)]y′=ln(3)1⋅(3x2+8x1)⋅(6x+8)
Simplify Result: Simplify the derivative. y′=(3x2+8x)⋅ln(3)6x+8
More problems from Find derivatives of logarithmic functions