Find cos A in the right triangle below. 
Definitions:
Adolescence
The period of psychological and physical transition between childhood and adulthood, characterized by rapid physical growth and psychological development.
Schizophrenia
A severe mental disorder characterized by distortions in thinking, perception, emotions, and behavior, often manifesting as hallucinations and delusions.
Obsessive-Compulsive Disorder (OCD)
A mental health disorder characterized by persistent unwanted thoughts (obsessions) and repetitive behaviors or mental acts (compulsions).
Brain Abnormality
Any deviation from the normal structure or function of the brain that can lead to neurological or psychological disorders.
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