The Angle Between $4 \vec { i } + 2 \vec { k }$

question 63

True/False

The angle between $4 \vec { i } + 2 \vec { k }$ and $\vec { i } - 2 \vec { j } + 5 \vec { k }$ is less than $\pi$ /2.

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Definitions:

Postpubertal Girls

Refers to females who have gone through puberty and have reached sexual maturity.

Oppositional Defiant Disorder

A behavioral disorder in children and adolescents characterized by a persistent pattern of defiant, disobedient, and hostile behavior toward authority figures.

Conduct Disorder

A serious behavioral and emotional disorder in children and adolescents characterized by a long-term pattern of antisocial behavior, aggression, and a disregard for others.

Juvenile Delinquency

Refers to anti-social or criminal behavior by individuals under the age of 18.