question 191

Essay

$$\text { What happens if } C = 90 ^ { \circ } \text { when the law of cosines is applied in the form } c ^ { 2 } = a ^ { 2 } + b ^ { 2 } - 2 a b \cos C \text { ? }$$

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Definitions:

Unit of Resource

A specific quantity of a resource or input used in the production of goods or services.

Deforestation

The removal of a forest or stand of trees from land which is then converted to a non-forest use, often resulting in ecological imbalance.

Forest Cover

The proportion of land area that is covered by forests, which is crucial for biodiversity, climate regulation, and ecosystem services.