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Textbook Expert
Textbook ExpertVerified Tutor
29 Oct 2021

Given information

  •  of an agricultural crop and it is given by .
  • is nitrogen level in the soil.
  • is a positive constant.

Step-by-step explanation

Step 1.

Th yield is .

Take first derivative of it with respect to nitrogen level .

   

Equate it with zero to find the value of  

 

Nitrogen level can never be negative so  

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