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

Find out the roots of the subsequent pure quadratic equation, Find out the ...

Find out the roots of the subsequent pure quadratic equation: Find out the roots of the subsequent pure quadratic equation. 4x 2 - 100 = 0 Solution: Using Equation

What is the annual interest rate on an account in which earn, What is the a...

What is the annual interest rate on an account in which earns $948 in simple interest over 36 months along with an initial deposit of $7,900? Using the easy interest formula In

Quadratic equation, for what k, q.p. kx2-8x+k can be factored into real lin...

for what k, q.p. kx2-8x+k can be factored into real linear factors. kx2-8x+k

State demorgans law and prove it using the truth table, State DeMorgan's la...

State DeMorgan's law. Prove it using the truth table.   Ans: DeMorgan's law defines that    (i)  (x ∨ y)' = x' ∧ y' (ii)  (x ∧ y)' = x' ∨ y'      Now let us dr

Determine the volume of the pool, An inground pool is pooring with water. T...

An inground pool is pooring with water. The shallow end is 3 ft deep and gradually slopes to the deepest end, which is 10 ft deep. The width of the pool is 30 ft and the length is

Example of factoring quadratic polynomials, Factor following polynomials. ...

Factor following polynomials.                               x 2 + 2x -15 Solution x 2 +2x -15 Okay since the first term is x 2 we know that the factoring has to ta

What is a function, What is a Function, Anyway? Domain? Range? Next tim...

What is a Function, Anyway? Domain? Range? Next time you're at a fast-food restaurant, take a look at the price list. It may look something like this: • Hamburger.............

Business math, David invests $17,000 into an account and at the end of 7 ye...

David invests $17,000 into an account and at the end of 7 years, his account has a balance of $ 26,417.77. What is the interest rate (assuming annual compounding)?

Forecasting by using least squares, Forecasting By Using Least Squares ...

Forecasting By Using Least Squares Data have been kept of sales over the last seven years Year 1 2 3 4 5 6

Speed, Town x and town y were 270km apart. a car started from town x toward...

Town x and town y were 270km apart. a car started from town x towards town y at a uniform speed of 60km/hr, while a motorcycle started from town y to town x at a uniform speed of 9

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