Simplify
- $\frac { x ^ { - 2 } } { x ^ { - 2 } - y ^ { - 2 } }$

question 285

Multiple Choice

Simplify.
- $\frac { x ^ { - 2 } } { x ^ { - 2 } - y ^ { - 2 } }$

• A) \(\frac { y ^ { 2 } - x ^ { 2 } } { y ^ { 2 } }\)
• B) \(\frac { y } { y ^ { 2 } - x ^ { 2 } }\)
• C) \(\frac { y ^ { 2 } } { y ^ { 2 } - x ^ { 2 } }\)
• D) \(\frac { y ^ { 2 } } { y ^ { 2 } + x ^ { 2 } }\)

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Definitions:

Inspiratory Reserve Volume

The additional amount of air that can be forcibly inhaled after the completion of a normal inspiration.

Inspiratory Capacity

The maximum amount of air an individual can inhale after completing a normal, restful exhalation, important in respiratory assessments.

Tidal Volume

The amount of air moved into or out of the lungs during a normal breath.

Residual Volume

Residual volume is the amount of air left in the lungs after a forceful exhalation, important for preventing lung collapse and maintaining gas exchange.