Establish the Identity $$\cot ^ { 3 } x = \cot x \left( \csc ^ { 2 } x - 1 \right)$$

question 166

Essay

Establish the identity.
- $$\cot ^ { 3 } x = \cot x \left( \csc ^ { 2 } x - 1 \right)$$

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Definitions:

Infant Industries

Emerging sectors or businesses that are at the beginning stages of development and may be protected by a government to help them grow without foreign competition.

Neo-Mercantilist

An economic philosophy that advocates for government involvement in protecting and growing domestic industries through policies that often include tariffs and quotas.

Content Requirements

A minimum level of materials, parts, or inputs that must originate in the local country rather than be imported.

Reciprocal Requirements

Mutually agreed upon obligations or needs between two parties, often seen in contracts or negotiations.