Simplify
- $\left( a ^ { - 1 } + b ^ { - 1 } \right) ^ { - 1 }$

question 161

Multiple Choice

Simplify.
- $\left( a ^ { - 1 } + b ^ { - 1 } \right) ^ { - 1 }$

• A) \(\frac { a b } { a - b }\)
• B) \(\frac { a b } { a }\)
• C) \(\frac { a + b } { a b }\)
• D) \(\frac { a b } { a + b }\)

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Definitions:

Principal Purpose

The primary or predominant reason for which an activity, agreement, or operation is intended or carried out.

Substantially Frustrated

A condition in contract law when an unforeseen event undermines the purpose of the contract, justifying its termination.

Basic Assumption

A fundamental belief or principle that is accepted as true without proof.

Commercial Impracticability

A defense in contract law that can release parties from their obligations if an unforeseen event makes the fulfillment of the contract unreasonably difficult or expensive.