Posted by Ishmael on Wednesday, November 14, 2012 at 3:08am.
A number where first derivation = 0 is called a critical number.
In this case :
d ( 2 x + 5 ) / dx = =
2 = 0
Critical number of the fuction G(x)= 2 x + 5 not exist
d ( 2 x + 5 ) / dx = 0
2 = 0
Makes no sense.
That is why critical number not exist.
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