1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Assoli18 [71]
2 years ago
6

6. Let A and B be nxn matrices . Compute (A + B) (A + B). Explain all steps.

Mathematics
1 answer:
Pie2 years ago
4 0

Answer:

(A+B)(A+B)=A.A+B.A+A.B+B.B

Step-by-step explanation:

Given that matrices A and B are nxn matrices

We need to find (A+B)(A+B)

For understanding the multiplication of matrices let'take A is mxn and B is pxq matrices,we can multiple only when n=p,so our Ab matrices will be mxq.

We know that that in matrices AB is not equal to BA.

Now find  

(A+B)(A+B)=A.A+B.A+A.B+B.B

So from we can say that (A+B)(A+B) is not equal to A.A+2B.A+B.B because AB is not equal to BA in matrices.

So (A+B)(A+B)=A.A+B.A+A.B+B.B

You might be interested in
Joaquin writes the following list of numbers.
swat32

From the given list of numbers, the numbers that are:

rational are 26, -3/2, 0, and 9.

irrational are 5.737737773..., and √45.

Any number that can be written in the form of p/q, where p and q are integers, and q ≠ 0, are called rational numbers.

All terminating and non-terminating recurring decimals are rational numbers.

All the numbers that cannot be represented in the rational form of p/q are irrational numbers.

All non-terminating non-recurring decimals are irrational.

All square roots of imperfect square numbers, that is, surds, are irrational numbers.

In the question, we are asked to classify the given list of numbers into rational and irrational numbers.

  • 5.737737773...: It is an irrational number, since its a non-terminating non-recurring decimal.
  • 26: It is rational as it can be represented in the p/q form (26/1).
  • √45: It is irrational as it is a square root of an imperfect square number, that is, it is a surd.
  • -3/2: It is rational as it is in the form p/q.
  • 0: It is rational as it can be represented in the p/q form (0/1).
  • 9: It is rational as it can be represented in the p/q form (9/1).

Thus, from the given list of numbers, the numbers that are:

rational are 26, -3/2, 0, and 9.

irrational are 5.737737773..., and √45.

Learn more about rational and irrational numbers at

brainly.com/question/14994517

#SPJ9

The provided question is incorrect. The correct question is:

Joaquin writes the following list of numbers.

5.737737773..., 26, √45, -3/2, 0, 9.

Which numbers are rational?

Which numbers are irrational?

6 0
1 year ago
I'll give you more points but you have to answer all the parts to the question. I need this plsssss ty lol. Show all work too pl
alexira [117]

Answer:

a) 34mi

b) 10mi

c) 44mi

d) by Calculating the amount of miles it would take John to go to school plus the amount of miles it would take Sara to go to school. Then add the sum of the amount of miles it took for both to go to school.

Step-by-step explanation:

a) explanation:

a^{2} +b^2=c^2

16^2+30^2=c^2

256 + 900 = c^2

c^2=1156

\sqrt{1156}=34mi

b) explanation:

a^{2} +b^2=c^2

6^2+8^2=c^2

36+64=c^2

c^2=100

\sqrt{100} =10mi

c) explanation: we already have all the data from John's house to Sara's House.

John's House to Sara's House = John's House to School + Sara's House to School.

Sara's House to School (Question #1) = 34mi

John's House to School (Question #2) = 10mi

34(mi) + 10(mi) = 44(mi)

d) explanation: explanation is on the answer

7 0
2 years ago
13.27= t - 24.45 show your work
Irina18 [472]
Subtract 24.45 from itself the subtract 13.27 by 24.45 and should t=37.73
7 0
3 years ago
PEASE HELP ME WITH THIS SOMEONE PLEASE??
Snezhnost [94]
The answer would be y=-4x+0
5 0
3 years ago
Read 2 more answers
24 pack of cans 2 for 9 dollars what is the ratio of the number of cans to the price
ki77a [65]
Each can is 4.50 and the 24 pack is $108
8 0
2 years ago
Read 2 more answers
Other questions:
  • Idk how to work this out 6h-11-h+4-27h-2
    6·1 answer
  • The formula for the circumference of a circle is C = 2pi . Determine the circumference when the radius r is 10 cm. A. 100 approx
    11·1 answer
  • Shane pays $2568 per year in tuition. How much should he budget monthly for it? (Points : 3) $107 $156 $214 $228
    9·2 answers
  • The elevation of a sunken treasure is -180 feet. Your elevation is 3/4 of the ship's elevation Whats your elevation?
    5·2 answers
  • Hat is the slope of the line represented by the equation y = x – 3
    8·2 answers
  • Brad reads his favorite book for 114 hours each day. If he has read the book for 2212 hours so far, how many days has he read it
    10·1 answer
  • Gabriella bought three melons for 7.50 how many melons can April buy if she has 17.50
    11·1 answer
  • Help!!!!!
    5·1 answer
  • Increase 170 by 25%<br> Help pls
    15·1 answer
  • Find the area of the trapezoid.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!