Final Answer
Step-by-step Solution
Specify the solving method
To derive the function $\tan\left(x+1\right)$, use the method of logarithmic differentiation. First, assign the function to $y$, then take the natural logarithm of both sides of the equation
Apply natural logarithm to both sides of the equality
Apply logarithm properties to both sides of the equality
Derive both sides of the equality with respect to $x$
The derivative of the natural logarithm of a function is equal to the derivative of the function divided by that function. If $f(x)=ln\:a$ (where $a$ is a function of $x$), then $\displaystyle f'(x)=\frac{a'}{a}$
The derivative of the linear function is equal to $1$
The derivative of the tangent of a function is equal to secant squared of that function times the derivative of that function, in other words, if ${f(x) = tan(x)}$, then ${f'(x) = sec^2(x)\cdot D_x(x)}$
The derivative of a sum of two or more functions is the sum of the derivatives of each function
The derivative of the constant function ($1$) is equal to zero
The derivative of the linear function is equal to $1$
Multiply the fraction and term
Simplify $\frac{\sec\left(x+1\right)^2}{\tan\left(x+1\right)}$ by applying trigonometric identities
Multiply both sides of the equation by $y$
Substitute $y$ for the original function: $\tan\left(x+1\right)$
The derivative of the function results in
Simplify the derivative