Find the Right Part of the Equality $1 ^ { 2 } + 2 ^ { 2 } + 3 ^ { 2 } + \ldots + n ^ { 2 } =$

question 15

Multiple Choice

Find the right part of the equality. $1 ^ { 2 } + 2 ^ { 2 } + 3 ^ { 2 } + \ldots + n ^ { 2 } =$ ________

• A) \(\frac { n ( n + 1 ) ( 2 n + 1 ) } { 6 }\)
• B) \(\frac { n ( n + 1 ) ( n + 3 ) } { 4 }\)
• C) \(\frac { n ( n + 1 ) } { 2 }\)
• D) \(\frac { ( n + 1 ) ( n + 2 ) } { 3 }\)
• E) none of the above

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Definitions:

Wyatt v. Stickney

A landmark legal case that established the right to adequate treatment for people in psychiatric hospitals in the United States.

Major Depression

a severe mood disorder characterized by persistent feelings of sadness, loss of interest in activities, and a range of physical and cognitive symptoms, affecting daily functioning.

Attention-Deficit/Hyperactivity Disorder

A condition characterized by difficulties maintaining attention, excessive activity, and actions without much consideration, impacting daily functioning.

Right to Treatment

Fundamental right of involuntarily committed people to receive active treatment for their disorders rather than shelter alone.