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
azamat
3 years ago
15

An elementary ntimesn scaling matrix with k on the diagonal is the same as the ntimesn identity matrix with _______ exactly one

at least one all of the ______ 0's 1's replaced with some number k. This means it is _______ an invertible matrix, a zero matrix, a singular matrix, a triangular matrix, an identity matrix, and so its determinant is the _______ sum product of its diagonal entries.​ Thus, the determinant of an elementary scaling matrix with k on the diagonal is nothing.
Mathematics
1 answer:
Dafna11 [192]3 years ago
3 0

Answer:

exactly one, 0's, triangular matrix, product and 1.

Step-by-step explanation:

So, let us first fill in the gap in the question below. Note that the capitalized words are the words to be filled in the gap and the ones in brackets too.

"An elementary ntimesn scaling matrix with k on the diagonal is the same as the ntimesn identity matrix with EXACTLY ONE of the (0's) replaced with some number k. This means it is TRIANGULAR MATRIX, and so its determinant is the PRODUCT of its diagonal entries.​ Thus, the determinant of an elementary scaling matrix with k on the diagonal is (1).

Here, one of the zeros in the identity matrix will surely be replaced by one. That is to say, the determinants = 1 × 1 × 1 => 1. Thus, it is a a triangular matrix.

You might be interested in
Calculate the line integral of the vector field  F  = xy i  + (x − y) j  along C, the triangle composed of three segments. C1 is
Ksivusya [100]
Thank you for posting your question here at brianly. I hope the answer will help you. Below is the solution:

or segment from (4,0) to (-4,0), y is always zero because straight segment. 
<span>in that case x*y=x*0=0 </span>
<span>and x+y=x+0=x </span>
<span>if you choose x=4-t where t goes from 0 to 8 you should get </span>
<span>r(t)=0i+(4-t)j </span>
6 0
3 years ago
Im very young and need help whats 2+2
Fynjy0 [20]

Answer:

4

Step-by-step explanation:

if you had 2 monkeys and another 2 monkeys and you put them in a pen together then you will have 4 monkeys in the pen

hope this helps :))

7 0
3 years ago
Read 2 more answers
Write the place vslue of 7in 67,689
Tems11 [23]
The value of 7 can be wrote as

7,000 or seven thousand
8 0
3 years ago
Can atriangle be formed with side lengths of 5cm. 10cm and 15cm
andreyandreev [35.5K]
Theorem of cosine:
a²=b²+c²-2bc(cos α)  ⇒cos α=-(a²-b²-c²) / 2bc

In this case:
a=15 cm
b=10 cm
c=5 cm

cos α=-(15²-10²-5²) / 2*10*5
cos α=-100 / 100
cos α=-1

A=arc cos -1=180º  This is impossible, because:

A+B+C=180º; then  B=C=0º  This is impossible for make a triangle  (B>0 and C>0 if we want to make a triangle).  

Therefore: it is not possible can make a triangle with side lengths of 5 cm, 10 cm and 15 cm.

3 0
3 years ago
Read 2 more answers
Can anyone help me with this dont answer if you dont no what it is and no deleting answers
Mkey [24]
The answer to this question is the second choice, jessica bought 1/4 more than derek

6 0
2 years ago
Other questions:
  • -3(2x+1)+2(-y+1)-3y+2y
    14·2 answers
  • What is the quotient of 11.25 divided by 2.5 ? O A. 0.405 O B. 0.450 O C. 4.050 0 D. 4.500​
    6·1 answer
  • Is 0.5 greater than or less than 3/5​
    15·2 answers
  • Marcos purchases a top-up card for his pre-paid cell phone. His remaining balance, B, can be modeled by the equation B=40−0.1n,
    15·1 answer
  • the equation 25-3.99p represents the amount of money itzel has left over after buying p bottles of nail polish. what does the co
    11·1 answer
  • Jessie estiments the weight of her cat to be 10 pounds the actual weight of the cat is 13.75 pounds fine the percent error
    13·1 answer
  • 2 good 2 be truee???? pls help
    15·1 answer
  • [tex]\sqrt{x} 196<br> can someone help me
    6·2 answers
  • HELP THIS IS DUE AT 1:30
    12·1 answer
  • Pls help ill give brainliest i put pictute down
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!