Matrices and Vectors — Formula Sheet
ICSE · Class 11 · Artificial Intelligence
11 formulas from Matrices and Vectors (ICSE Class 11 Artificial Intelligence) on one page, grouped by topic. Covers Matrix Basics, Types of Matrices.
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Formulas and Key Relations
Matrices: Basics and Order
A = [aij]
Order of a matrix = rows × columns
Matrix Operations
A^T
AB = BA = I^n
|A| = ad - bc
trace A = sum of diagonal elements
trace A = 6-2+7 = 11
Matrix Arithmetic
A + B = matrix obtained by adding corresponding elements
K A = multiply every element of A by K
AB is possible only if columns of A = rows of B
AB = [CiT]m×p
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