notoriousb notoriousb

21-04-2017
Mathematics

contestada

A is a 2 ×2 matrix and 3(A+I)=I. Enter det(A+I).

Respuesta :

LammettHash LammettHash

21-04-2017

[tex]3(\mathbf A+\mathbf I)=\mathbf I[/tex]
[tex]\mathbf A+\mathbf I=\dfrac13\mathbf I[/tex]
[tex]\implies \det(\mathbf A+I)=\det\left(\dfrac13\mathbf I\right)=\left(\dfrac13\right)^2=\dfrac19[/tex]

Answer Link

Otras preguntas

https://wiseup.wsu.ac.za/mod/quiz/view.php?id=195715

Why did president woodrow wilson want americans to observe a moment of silence on november 11 at 11 am?.

Find −v>−4 an equivalent inequality (please)

What is written in the Account Title column for the transaction "bought supplies on account"? Supplies and Vendor Name Supplies and Accounts Payable Cash and S

A machine makes cones at a rate that is 40% lower than the machines mentioned in the passage. How many cones can this machine make in an hour?

If m/DEF= 122, then what are m/FEG and m/HEG? The diagram is not to scale. #3

Which type of rock contains fossils? Select the correct answer.(1 point) Responses 1. igneous rock 2. metamorphic, sedimentary, and igneous rock 3. metamorphic

Add commas to them when needed. If the sentences do not need a comma write (No comma) at the end of the sentence. 1.When life gives you lemons make lemonade.

a. My best friend is sitting.................me. She is on my left. i. across ii.along iii. beside iv. between

Let ABCD tetrahedron have AB = BC = a, AC = b, DB = DC = x, AD = y. Find the relation between a, b, x, y so that: a) Plane (ABC) is perpendicular to plane (BCD