Mister Exam

Derivative of y=ln(2x+11)+5x

Function f() - derivative -N order at the point
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The graph:

from to

Piecewise:

The solution

You have entered [src]
log(2*x + 11) + 5*x
5x+log(2x+11)5 x + \log{\left(2 x + 11 \right)}
log(2*x + 11) + 5*x
Detail solution
  1. Differentiate 5x+log(2x+11)5 x + \log{\left(2 x + 11 \right)} term by term:

    1. Let u=2x+11u = 2 x + 11.

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

    3. Then, apply the chain rule. Multiply by ddx(2x+11)\frac{d}{d x} \left(2 x + 11\right):

      1. Differentiate 2x+112 x + 11 term by term:

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

          1. Apply the power rule: xx goes to 11

          So, the result is: 22

        2. The derivative of the constant 1111 is zero.

        The result is: 22

      The result of the chain rule is:

      22x+11\frac{2}{2 x + 11}

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

      1. Apply the power rule: xx goes to 11

      So, the result is: 55

    The result is: 5+22x+115 + \frac{2}{2 x + 11}

  2. Now simplify:

    10x+572x+11\frac{10 x + 57}{2 x + 11}


The answer is:

10x+572x+11\frac{10 x + 57}{2 x + 11}

The graph
02468-8-6-4-2-1010-100100
The first derivative [src]
       2    
5 + --------
    2*x + 11
5+22x+115 + \frac{2}{2 x + 11}
The second derivative [src]
    -4     
-----------
          2
(11 + 2*x) 
4(2x+11)2- \frac{4}{\left(2 x + 11\right)^{2}}
The third derivative [src]
     16    
-----------
          3
(11 + 2*x) 
16(2x+11)3\frac{16}{\left(2 x + 11\right)^{3}}
The graph
Derivative of y=ln(2x+11)+5x