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
Lyrx [107]
3 years ago
5

The trace of an n×n matrix A, denoted tr(A), is thesum of its diagonal entries; that is,tr(A) = a11 + a22 +· · ·+annShow that(a)

tr(AB) = tr(BA)(b) if A is similar to B, then tr(A) = tr(B).

Mathematics
1 answer:
Ulleksa [173]3 years ago
4 0

Answer:

Step-by-step explanation:

for two matrices A, B to be Similar, then A = SBS⁻¹

A=SBS−1⟹trace(A)=trace((SB)(S−1))=trace((S−1)(SB))=trace((SS−1)B)=trace(B)

You might be interested in
Which statements are true? Check all that apply. TIMED! WILL GIVE BRAINLIEST!
gladu [14]

Answer:

The 1st, 3rd, 4th, 5th are correct

7 0
3 years ago
Help me please...I will mark brainliest
nekit [7.7K]

The answer is A because playing sport is not affected by playing sports (for more detail go to https://www.mathsisfun.com/data/probability-events-independent.html)

If it's not A then it's B

6 0
3 years ago
If 18 is subtracted from twice the square of an integer, the
Sergeu [11.5K]

Answer:

-3/2

Step-by-step explanation:

Let x = the integer:

2x^2 - 18 = 9x

2x^2 - 9x - 18 = 0

Now either factor that or use the quadratic formula if you're lazy like me.

x = -3/2 and 6, so x must be 6 because it has to be an integer.

5 0
3 years ago
Which of the following is the solution to 9|x +4|>54 ?
horsena [70]

Answer:

x>2 or x<-10

Step-by-step explanation:

9|x +4|>54

Divide each side by 9

9/9|x +4|>54/9

|x +4|>6

There are two solutions, one positive and one negative

x+4 >6  or x+4 < -6

Subtract 4 from each side

x+4-4 >6-4   or x+4-4 < -6-4

x>2 or x<-10

4 0
3 years ago
I need help!! Please help me
Zinaida [17]

Answer:

y= 6

Step-by-step explanation:

A horizontal line means y = something  ( the x value will change, but y remains the same)

In this case, the y value is 6

y= 6

8 0
3 years ago
Other questions:
  • Whats 2(4x + 90) <br> X= 189
    14·2 answers
  • a jeweler has priced a diamond ring at $850. this price represent $50 less than twice the cost of the ring to the jeweler. find
    13·1 answer
  • The volume of a cone is 763.02. the radius and height of the cone are equal. What is the radius of the cone?
    14·1 answer
  • Pls help me, it’s equations
    10·1 answer
  • Melissa averages a rate of 1.5 steps per second while walking. How many steps will she take in an hour if this rate continues?
    13·1 answer
  • What’s the slope of (-11,-5), (10,16)
    9·1 answer
  • The perimeter of the pentagon is 62 units find the length of side BC
    10·1 answer
  • Please help! find the area is the parallelogram.​
    11·2 answers
  • Which pairs are like terms in the expression below? Select all that apply.
    11·2 answers
  • What is the equation of a line that is perpendicular to -x + 2y =4 and passes through the point (-2, 1)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!