Let $z = \ln \sqrt { x ^ { 2 } + y ^ { 2 } }$

question 18

Essay

Let $z = \ln \sqrt { x ^ { 2 } + y ^ { 2 } }$ , $x = r \cos \theta$ , and $y = r \sin \theta$ . Use the chain rule to find $\frac { \delta z } { \delta r }$ and $\frac { d z } { \delta \theta }$ .

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Definitions:

Indigenous Psychology

A branch of psychology that develops theories, research methods, and applications rooted in the cultural context of the population being studied.

Western Psychological Theories

Psychological concepts, models, and theories that have been developed and are primarily based in Western culture.

Psychological Processes

Internal mental operations that underlie human behavior and cognition, including perception, memory, and emotion.

Laissez-faire Cultural Pluralism

A viewpoint advocating for minimal governmental intervention in the cultural practices and identities of different groups within a society.