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Find the derivative of the function .
Social Smile
A smile from an infant that is directed towards people, typically emerging around 6 to 8 weeks of age, signifying the beginning of social development.
Anger
An emotional state varying in intensity from mild irritation to intense fury and rage, often triggered by perceived harm or threat.
Frustration
A negative emotional state that arises when one is blocked from achieving a desired goal or outcome.
Social Smile
A response by infants, usually beginning by about 8 weeks of age, in which they smile in reaction to other people, signaling pleasure and engagement.
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