15 Answered Questions for the topic Matrix Method

Matrix Method

09/16/18

#### I wanted to know how to reduce 3x3 matrix into diagonal form

Matrix is-
1st row
1 2 -2
2nd row
1. 2. 1
3 row
-1 -1 0

Matrix Method

07/31/18

#### If A is 2x2 matrix ( a b c d ) and A-1 is ( x y z w ) . Find w x y z in the term of a b c d.

If A= (a b) and A-1= ( x y )
( c d) ( z w)
Find w,x,y,z in the terms of a,b,c and d.
P/s: I really appreciate if you can help me. Thank you sir/madam/miss.

07/27/18

#### Is this True or False ? Justify please

If X1,X2 and X3 are vectors in R3 such that {X1,X2} and {X1,X3} are linearly independent sets, then {X1,X2,X3} is a linearly independent set.

07/27/18

#### Please help me find the matrix X. Justify your answer please.

2 1 0 1 0 1Let A = [ 1 0 1 ] and B = [ 2 0 1 ] 0 3 0 0 1 1 Find the matrix X such that (2X + A)-1 = B.

07/27/18

#### Is this True or False ? Justify your answer please.

If A is a 2 x 2 matrix such that AAT (Transpose) = 0, then A = 0.

Matrix Method

06/18/18

#### Matrix method

Use a matrix method to solve the set of equations x+2y+3=0 and 3x-y-5=0

Matrix Method

07/01/17

#### matricies please help

A dietician works in a hospital and prepares meals under guidance of a physician. suppose for a particular patient, a physician prescribes a meal to have 750 calories, 40 g of protein, and 320 mg...
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Matrix Method

02/21/16

#### must use Gaussian Method AND Cramers rule!! PLEASE HELP!

1) 3x-2y+z=9
x+y+4z=4
2x+3z=-1
2) x-2y=5z+4
6y+18z=2x-8
-3x+8y+20z=-18
3) -14=-20y-7x
10y+4=2x

11/30/15

#### Probability and Markov Processes? Free Throws. Please Help.

If she made the last free throw, then her probability of making the next one is 0.9. On the other hand, If she missed the last free throw, then her probability of making the next one is 0.2. Assume...
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Matrix Method

10/03/14

#### i can't solve the equation using matrix

here is the problem
3x + 4y = 12
2x + y = 13
i need help step by step in how to solve this problem using matrix

09/10/14

#### Can someone please explain to me in the layperson language what a matrix is and how to solve a matrix?

I am having a very hard time understanding what the term matrix means. I have tried to ask a teacher and I received little help.

Matrix Method

06/30/14

#### based on simultaneous and matrixs

solve the simultaneous equation below using any of the matrix method
2x+3y-z=6
3x+y+5z=8
x+2y+z=10

11/26/13

#### Use a matrix approach to solve the system

x − 3y − z = 133x + y − 4z = −13−2x + 5y + 3z = −19
x = ?
y = ?
z = ?
(If the system has infinitely many solutions, express your answer in terms of k, where x = x(k), y = y(k), and z = k....
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Matrix Method

09/12/13

#### matrix method

solve the equation by matrix method:-
x+2y-3z=4
2x+4y-5z=12
3x-y+z=3

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