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 MUST HAVE BOOKS FOR CLASS 12th BOARD EXAM 
 PHYSICS – https://amzn.to/2YCNRDC

CHEMISTRY https://amzn.to/2YnBz6B

MATHEMATICS – https://amzn.to/2YJmHLr

ENGLISH – https://amzn.to/2GK4lDR

PCM BOOKS – https://amzn.to/2GKB0sJ
 IMPORTANT – ( PLEASE KEEP IN MIIND ” NCERTS ” ARE MUST YOU CANOT AVOID THAT )
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In this video tutorial All basics of matrices are covered in deeply. in this video you will get to know following conceopts which will clear your basics of matrices.
(1) introduction to matrix (2) various types of matrix
(a) row matrix (b) coloum matrix (c) symmetric matrix (d) skew symmetric matrix
(e) Null matrix (f) square matrix (g) Rectangular matrix (h) Scalar matrix
(i) upper triangular matrix ( j) Lower triangular matrix