Question 827814
<pre>
{{{matrix(2,1,"",y)}}}{{{matrix(2,1,"",""="")}}}{{{matrix(2,1,"",6e^(-(x-3)^2))}}}

The rules for finding the derivative of 
a constant times a power of 'e' are

1. Copy it over:

{{{matrix(2,1,"",6e^(-(x-3)^2))}}}

2. Multiply by the derivative of the exponent.

The exponent is {{{-(x-3)^2}}}. 
Its derivative is {{{-2(x-3)}}}.
Multiply by that:

{{{matrix(2,1,"",(dy)/(dx))}}}{{{matrix(2,1,"",""="")}}}{{{matrix(2,1,"",6e^(-(x-3)^2)*(-2(x-3)))}}}

Simplify:

{{{matrix(2,1,"",(dy)/(dx))}}}{{{matrix(2,1,"",""="")}}}{{{matrix(2,1,"",-12(x-3)e^(-(x-3)^2))}}} 

Edwin</pre>