Simplify the Numerical Expression $\left( 3 ^ { - 3 } + 5 ^ { - 2 } \right) ^ { - 1 }$

question 17

Essay

Simplify the numerical expression. $\left( 3 ^ { - 3 } + 5 ^ { - 2 } \right) ^ { - 1 }$

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Definitions:

Voluntary Movements

Voluntary movements are conscious, intentional motor activities controlled by the brain, such as walking, speaking, and writing.

Cerebral Gyri

The ridges or folds on the surface of the cerebral hemisphere of the brain, increasing its surface area to facilitate neural processing.

Cortex

The outer layer of an organ or structure, such as the brain or kidney, involved in various functions depending on the specific organ.

Surface Area

The total area exposed on the surface of an object or material.