Find the Length and Direction (When Defined) of U × $3 ; \frac { 2 } { 3 } \mathrm { i } - \frac { 1 } { 3 } \mathrm { j } + \frac { 2 } { 3 } \mathrm { k }$

question 23

Multiple Choice

Find the length and direction (when defined) of u × v.
-u = 2i + 2j - k, v = -i + k

• A) \(3 ; \frac { 2 } { 3 } \mathrm { i } - \frac { 1 } { 3 } \mathrm { j } + \frac { 2 } { 3 } \mathrm { k }\)
• B) \(9 ; \frac { 2 } { 9 } \mathrm { i } + \frac { 1 } { 9 } \mathrm { j } - \frac { 2 } { 9 } \mathrm { k }\)
• C) \(3 ; \frac { 2 } { 3 } \mathrm { i } + \frac { 1 } { 3 } \mathrm { j } - \frac { 2 } { 3 } \mathrm { k }\)
• D) \(9 ; \frac { 2 } { 9 } \mathrm { i } - \frac { 1 } { 9 } \mathrm { j } + \frac { 2 } { 9 } \mathrm { k }\)

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Definitions:

Chromosome Pattern

The specific arrangement or structure of chromosomes within an organism's cells, which can be indicative of genetic conditions or traits.

Testicles

The male reproductive glands responsible for producing sperm and testosterone, located in the scrotum.

Breasts

Glandular organs located on the chest of female mammals that produce milk to feed their young; also present in males but less developed.

Cultural Construct

A concept or practice that is seen as natural or given by society, but is actually an invention of that society and varies across cultures.