Is (0, 0)a Critical Point of the Following Function $f ( x , y ) = \cos x \cos y$

question 47

Multiple Choice

Is (0, 0) a critical point of the following function? $f ( x , y ) = \cos x \cos y$

• A)No.
• B)Yes: (global)maximum.
• C)Yes: local minimum.
• D)Yes: (global)minimum.

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Definitions:

Protein Synthesis

The biological process by which cells build specific proteins based on the genetic instructions encoded in DNA and mediated by mRNA and ribosomes.

Amino Acids

Organic compounds containing amine and carboxylic acid functional groups, serving as the building blocks of proteins.

Anterior Pituitary

The front portion of the pituitary gland, responsible for producing and releasing hormones that regulate several endocrine functions.

Parathyroid Glands

Small endocrine glands in the neck that produce parathyroid hormone (PTH), regulating calcium levels in the blood and bone metabolism.