Find equations for the tangent plane and the normal line to the surface with equation 
at the point 
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Behavior Therapy
A type of psychotherapy that focuses on changing undesirable behaviors through various techniques like conditioning.
Child's Problems
Refers to a wide range of difficulties or challenges faced by children, including behavioral, emotional, and cognitive issues.
Separation Anxiety Disorder
A psychological condition where an individual experiences excessive fear or anxiety about separation from home or attachment figures.
School Anxiety
The fear, apprehension, or dread related to school, affecting an individual’s performance, attendance, or social interactions within the school environment.
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