Afrikaans Albanian Amharic Arabic Armenian Azerbaijani Basque Belarusian Bengali Bosnian Bulgarian Catalan Cebuano Chichewa Chinese (Simplified) Chinese (Traditional) Corsican Croatian Czech Danish Dutch English Esperanto Estonian Filipino Finnish French Frisian Galician Georgian German Greek Gujarati Haitian Creole Hausa Hawaiian Hebrew Hindi Hmong Hungarian Icelandic Igbo Indonesian Irish Italian Japanese Javanese Kannada Kazakh Khmer Korean Kurdish (Kurmanji) Kyrgyz Lao Latin Latvian Lithuanian Luxembourgish Macedonian Malagasy Malay Malayalam Maltese Maori Marathi Mongolian Myanmar (Burmese) Nepali Norwegian Pashto Persian Polish Portuguese Punjabi Romanian Russian Samoan Scottish Gaelic Serbian Sesotho Shona Sindhi Sinhala Slovak Slovenian Somali Spanish Sudanese Swahili Swedish Tajik Tamil Telugu Thai Turkish Ukrainian Urdu Uzbek Vietnamese Welsh Xhosa Yiddish Yoruba Zulu

MATRICES

A matrix is an ordered rectangular array containing number or letters. Each entry in a matrix is a called an element. Each element has a particular position in raw and a

columnin a matrix.Brackets are drawn around the whole array to show that we are treating it as a single matrix.

A VIDEO ABOUT THE INTRODUCTION TO MATRICES

ExerciseMatrix addition:Two matrices can be added if they have same order.

Example;

Combining rows and columns

d)How much did the order costMatrix MultiplicationTwo matrices are compatible 4 multiplications if and only if the number of columns in the left head matrix is equal to the number of raws in the hand matrix. If A and B are matrices then

The following table shows how many bags of rice, maize and beans that was bought by for different skuls A, B, C and D from a whole seller.

If the cost per bag of rice, maize and beans were Ksh. 250, Kjsh 100 and Ksh 60 respectively

Find how much each school spent?

A VIDEO ABOUT MULTIPLICATION OF MATRICES

For A cost will 1490 Ksh

For B cost will be Ksh 3250

For C cost will be Ksh 2590

For D cost will be Ksh 3870

Exercise

A hand set contains 2, 18R and 7C. A super set contains3T, 24R and 10C. Arrange this information in matrix form.

If the factory’s monthly output is 100 pockets, 200 hand and 80 super set. Find its monthly requirements of transistors, resistors and capacitors.

Total cost 10sh, R sh 5 and C sh 20. Find the matrix multiplication, the cost of these components

The identity matrixIs a matrix such that when you multiply it with another matrix whether on the left or right hand side, you get that matrix.

The inverse of a matrix

A matrix which has no inverse is called a

singular matrixIts determinant is equal to zero.

Hence write down the relationship between (ABC)

^{-1 }and A^{-1}, B^{-1}and C^{-1}.The quality of soda bottled each day at the three factories and the proportion of each type in the various bottle sizes is shown in the table below;

Crates of Soda in thousands

Find the amount of Soda (in thousands of crates) bottled at each factory in each of the three bottle sizes.

## Attachments39

## ASSIGNMENT : MATRICES ASSIGNMENT

MARKS : 30 DURATION : 3 hours

Add a note