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2 years ago

What is Symmetric Matrix ??

Mathematics

2 answers:

Gennadij [26K]2 years ago

8 0

A symmetric matrix is a square matrix that is equal to its transpose.

<h3>Symmetric matrix</h3>

In order to understand what is meant by a symmetric matrix, we must first understand the following;

A matrix is an arrangements of elements in rows and columns.
A square matrix has equal number of rows and columns.
The transpose of a matrix is a matrix obtained by interchanging rows and columns.

Hence, a symmetric matrix is a square matrix that is equal to its transpose.

Learn more about symmetric matrix: brainly.com/question/26184753

AveGali [126]2 years ago

6 0

Answer:

Symmetric matrix Refers to a square matrix that satisfies the relation. A = A ′ or , equivalently.

A matrix A is symmetric if it is equal to its transpose, i.e., A=AT.

Step-by-step explanation:

Hope it's helps!.

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Find the value of f(3) if f(x) = 4x^2 - 8x 3. a. 3 b. 12 c. 15 d. 18

Vladimir [108]

I hope this helps you

x=3

f (3)=4.3^2-8.3+3

f (3)=36-24+3=15

f (3)=4.3^2-8.3-3=36-24-3=5

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3 years ago

What is The least common multiple of two numbers I have no common factors greater than 1?GIVE AN EXAMPLE

Makovka662 [10]

"One and itself, example would be the least common multiple 2, it would be one and two being they're both multiples of two."

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3 years ago

It takes a train 60 seconds to completely drive through a bridge of 1260 m, and 90 seconds to completely drive through a tunnel

Olegator [25]

The length of train is 120 meters

The speed of train is 25 meter per second

Solution:

The speed is given by formula:

$speed = \frac{distance}{time}$

Given that,

It takes a train 60 seconds to completely drive through a bridge of 1260 m

And 90 seconds to completely drive through a tunnel of 2010 m

Let the length of the train be "x"

The total distance travelled by the train across the bridge is given by:

total distance = x + 1260 + x = 2x + 1260

[ here we use x + x to represent that train completely drives through bridge ]

The time taken is given as 60 seconds

Therefore, the speed is given as:

$speed = \frac{2x+ 1260}{60}$

The total distance travelled by the train through the tunnel is given by:

total distance = x + 2010 + x = 2x + 2010

The time taken is given as 90 seconds

Therefore, the speed is given as:

$speed = \frac{2x+ 2010}{90}$

The speed of the train was the same in both cases.

Equate both speeds

$\frac{2x+ 1260}{60} = \frac{2x+ 2010}{90}$

$\frac{x+630}{30} = \frac{x+1005}{45}$

$45(x+630) = 30(x+1005)\\\\45x + 28350 = 30x + 30150\\\\45x - 30x = 30150 - 28350\\\\15x = 1800\\\\x = 120$

Thus length of train is 120 meters

Find the speed of train:

$speed = \frac{2x+ 1260}{60}\\\\speed = \frac{2(120) + 1260)}{60}\\\\speed = 25$

Thus speed of train is 25 meter per second

5 0

3 years ago

What is the length of a hypotenuse of a triangle if each of its legs is 4 units

azamat

Answer:

$\boxed{c = 5.7 units}$

Step-by-step explanation:

Using Pythagorean Theorem:

=> $c^2 = a^2+b^2$

Where c is hypotenuse, a is base and b is perpendicular and ( a, b = 4)

=> $c^2 = 4^2+4^2$

=> $c^2 = 16+16$

=> $c^2 = 32$

Taking sqrt on both sides

=> c = 5.7 units

8 0

3 years ago

Read 2 more answers

HELPP MEE PLEASEEEEEE

Rudiy27

Answer:

wouldn't it be 5m....??

7 0

3 years ago

Read 2 more answers

What is Symmetric Matrix ??​

What is Symmetric Matrix ??