Show That B Is the Inverse of A ​

question 66

Essay

Show that B is the inverse of A.Show all your work. $A = \left[ \begin{array} { c c } 2 & 9 \\- 4 & 3\end{array} \right] , B = \left[ \begin{array} { c c } \frac { 1 } { 14 } & - \frac { 3 } { 14 } \\\frac { 2 } { 21 } & \frac { 1 } { 21 }\end{array} \right]$ ​

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Definitions:

Transitional Words

Words or phrases used to connect ideas, sentences, or paragraphs, facilitating smooth reading and coherence in text.

Phrases

Groups of words that function as a unit within a sentence, but do not contain a subject and predicate as a clause does.

Violence

Behavior involving physical force intended to hurt, damage, or kill someone or something.

Subdials

Smaller dials situated on the main dial of a watch, providing additional information like chronograph functions or a calendar.