Verify Whether $1 + 2 + 3 + \ldots + n = \frac { n } { 2 } ( n + 1 )$

question 277

Multiple Choice

Verify whether $1 + 2 + 3 + \ldots + n = \frac { n } { 2 } ( n + 1 )$ is true for $n = 3$ .

• A) yes
• B) no

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Definitions:

Market Value

The current price at which an asset or service can be bought or sold in the marketplace.

Goods and Services

The fundamental output of businesses to customers; goods are tangible items, whereas services are intangible offerings.

Market Potential

The maximum total sales volume that could be achieved by all firms in a market for a specific product or service over a given period, under ideal conditions.

Purchasing Power Parity

An economic theory that compares different countries' currencies through a "basket of goods" approach, aiming to assess their relative purchasing power.