Mister Exam

Other calculators

Derivative of 2exp(x-2)*ln(x-2)

Function f() - derivative -N order at the point
v

The graph:

from to

Piecewise:

The solution

You have entered [src]
   x - 2           
2*e     *log(x - 2)
2ex2log(x2)2 e^{x - 2} \log{\left(x - 2 \right)}
(2*exp(x - 2))*log(x - 2)
Detail solution
  1. Apply the product rule:

    ddxf(x)g(x)=f(x)ddxg(x)+g(x)ddxf(x)\frac{d}{d x} f{\left(x \right)} g{\left(x \right)} = f{\left(x \right)} \frac{d}{d x} g{\left(x \right)} + g{\left(x \right)} \frac{d}{d x} f{\left(x \right)}

    f(x)=2ex2f{\left(x \right)} = 2 e^{x - 2}; to find ddxf(x)\frac{d}{d x} f{\left(x \right)}:

    1. The derivative of a constant times a function is the constant times the derivative of the function.

      1. Let u=x2u = x - 2.

      2. The derivative of eue^{u} is itself.

      3. Then, apply the chain rule. Multiply by ddx(x2)\frac{d}{d x} \left(x - 2\right):

        1. Differentiate x2x - 2 term by term:

          1. Apply the power rule: xx goes to 11

          2. The derivative of the constant 2-2 is zero.

          The result is: 11

        The result of the chain rule is:

        ex2e^{x - 2}

      So, the result is: 2ex22 e^{x - 2}

    g(x)=log(x2)g{\left(x \right)} = \log{\left(x - 2 \right)}; to find ddxg(x)\frac{d}{d x} g{\left(x \right)}:

    1. Let u=x2u = x - 2.

    2. The derivative of log(u)\log{\left(u \right)} is 1u\frac{1}{u}.

    3. Then, apply the chain rule. Multiply by ddx(x2)\frac{d}{d x} \left(x - 2\right):

      1. Differentiate x2x - 2 term by term:

        1. Apply the power rule: xx goes to 11

        2. The derivative of the constant 2-2 is zero.

        The result is: 11

      The result of the chain rule is:

      1x2\frac{1}{x - 2}

    The result is: 2ex2log(x2)+2ex2x22 e^{x - 2} \log{\left(x - 2 \right)} + \frac{2 e^{x - 2}}{x - 2}

  2. Now simplify:

    2((x2)log(x2)+1)ex2x2\frac{2 \left(\left(x - 2\right) \log{\left(x - 2 \right)} + 1\right) e^{x - 2}}{x - 2}


The answer is:

2((x2)log(x2)+1)ex2x2\frac{2 \left(\left(x - 2\right) \log{\left(x - 2 \right)} + 1\right) e^{x - 2}}{x - 2}

The graph
02468-8-6-4-2-101020000-10000
The first derivative [src]
   x - 2                      
2*e           x - 2           
-------- + 2*e     *log(x - 2)
 x - 2                        
2ex2log(x2)+2ex2x22 e^{x - 2} \log{\left(x - 2 \right)} + \frac{2 e^{x - 2}}{x - 2}
The second derivative [src]
  /      1         2                 \  -2 + x
2*|- --------- + ------ + log(-2 + x)|*e      
  |          2   -2 + x              |        
  \  (-2 + x)                        /        
2(log(x2)+2x21(x2)2)ex22 \left(\log{\left(x - 2 \right)} + \frac{2}{x - 2} - \frac{1}{\left(x - 2\right)^{2}}\right) e^{x - 2}
The third derivative [src]
  /      3           2         3                 \  -2 + x
2*|- --------- + --------- + ------ + log(-2 + x)|*e      
  |          2           3   -2 + x              |        
  \  (-2 + x)    (-2 + x)                        /        
2(log(x2)+3x23(x2)2+2(x2)3)ex22 \left(\log{\left(x - 2 \right)} + \frac{3}{x - 2} - \frac{3}{\left(x - 2\right)^{2}} + \frac{2}{\left(x - 2\right)^{3}}\right) e^{x - 2}