# After learning These impressions you can expect 1. Describing the matrix 2. Applying the concept of similarity of two matrices 3. Able to addjaction and.

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After learning These impressions you can expect 1. Describing the matrix 2. Applying the concept of similarity of two matrices 3. Able to addjaction and substraction of matrices

Students Presence Class XII: February 2010 CHECK TABLE Name SickPermissi on Without Notice Agus 013 Budi 120 Cicha 511 Deni 202 Name cotton Drillsilk A 25189 B 27168 Cloth price data in A and B Stores (In thousands) / m 25 18 9 27 16 8 0 1 3 1 2 0 5 1 1 2 0 2 Name SickPermissi on Without Notice Agus 013 Budi 120 Cicha 511 Deni 202

The composition of rectangular numbers arranged in rows and columns, written between regular or square brackets What is matrix ? 0 1 3 1 2 0 5 1 1 2 0 2 Row 1 Row 2 Row 3 Row 4 Column 1Column 2 Column 3 Matrix has four rows and three columns say Order 4 x 3 matrix If a matrix has m rows and n columns is called Order m x n matrix Conclusion Numbers referred to the constituent elements of the matrix element that

25 18 9 27 16 8 How about this matrix? How many rows ? How many columns ? So…. The order is.......? 2 x 3

What do you thing about these two matrices? Matrix A = matrix B Matrix R = matrix S Matrix P  matrix Q What conclusions?Two matrices is called equal if: 1. 2. Same order Elements that on the two matrices has the same value SIMILARITY OF TWO MATRIX

dan B = A = x – 7 = 6 If matrix A = matrix B, then determine value of x and y ! 1. Given matrix So, x = 6 + 7 = 13 2y = -1So y = – ½

From Example Simplify + = + = Ans: Addition and Subtraction of Matrices Matrices of the same order are added by summing up the corresponding elements.

Matrices of the same order are subtracted by taking the difference of the corresponding elements. From Example Simplify − = Ans: _ =

THANKS

1. What have you learnt today? Apa yang sudah Anda pelajari hari ini? 2. What is positive and negatif about learning today ? Apa yang positif dan negatif tentang pembelajaran hari ini? 3. What do you want to learn more of? Apa yang ingin Anda pelajari lebih lanjut lagi? Harvesting

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