Example of multiplication of matrix, Mathematics

Assignment Help:

Given

1983_Example of Multiplication.png

So calculate AB.

Solution

The new matrix will contain size 2 x 4. The entry in row 1 and column 1 of the new matrix will be determined by multiplying row 1 of A with column 1 of B. It means that we here multiply corresponding to entries from the row of A and the column of B and then add the results up.  Here are a couple of the entries computed all the way out.

c11 = (2)(1) + (-1)(-4) + (0)(0) = 6

c13  = (2)(-1) + (-1) (1) + (0) (0) = -3

c24 = (-3) (2) + (6) (0) + (1)(-2) = -8

Here's the absolute solution.

2152_Example of Multiplication1.png

In this last illustration see that we could not have done the product BA as the number of columns of B doesn't match the number of row of A. This is significant to note that just because we can calculate AB doesn't mean that we can calculate BA. Similarly, even though we can calculate both AB and BA they may or may not be similar matrix.


Related Discussions:- Example of multiplication of matrix

SHARES AND DIVIDEND, PLEASE PROVIDE SOME STUFF TO WRITE ON SHARES AND DIVID...

PLEASE PROVIDE SOME STUFF TO WRITE ON SHARES AND DIVIDEND

How many cubic yards of concrete are required, A concrete retaining wall is...

A concrete retaining wall is 120 feet long with ends shaped as given. How many cubic yards of concrete are required to construct the wall? a. 217.8 yd 3 b. 5,880 yd 3

Solve 6 sin ( x/2)= 1 on [-20, Solve 6 sin ( x/2)= 1 on [-20,30] Soluti...

Solve 6 sin ( x/2)= 1 on [-20,30] Solution Let's first work out calculator of the way since that isn't where the difference comes into play. sin( x/2)= 1/6   ⇒x/2= sin

What is the widest piece of sheetrock, A door height is 6 feet and 6 inches...

A door height is 6 feet and 6 inches and 36 inches wide. What is the widest piece of sheetrock that will ?t through the door? Round to the nearest inch. a. 114 in b. 86 in

Calculate the number-average and weight-average molar mass, Three mixtures ...

Three mixtures were prepared with very narrow molar mass distribution polyisoprenesamples with molar masses of 8000, 25,000, and 100,000 as indicated below. (a) Equal numbers of

How much sales tax did she pay if items was 6 percent, Lindsay purchased a ...

Lindsay purchased a pocketbook for $45 and a pair of shoes for $55. The sales tax on the items was 6%. How much sales tax did she pay? Find out the price of the two items toget

Properties of summation notation, Properties Now there are a couple of ...

Properties Now there are a couple of formulas for summation notation. 1. here c is any number. Therefore, we can factor constants out of a summation. 2. T

Hyperboloid of two sheets - three dimensional spaces, Hyperboloid of Two Sh...

Hyperboloid of Two Sheets The equation which is given here is the equation of a hyperboloid of two sheets. - x 2 /a 2 - y 2 / b 2 + z 2 /c 2 = 1 Here is a diagram of

Calculus with matrices, Calculus with Matrices There actually isn't a ...

Calculus with Matrices There actually isn't a whole lot to it other than to just ensure that we can deal along with calculus with matrices. Firstly, to this point we've onl

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd