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Standards/Math/Alabama/A2.5

A2.5

A2 Algebra II with Statistics
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A2.5.aA2.5.b
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A2.9

Describe the roles that zero and identity matrices play in matrix addition and multiplication, recognizing that they are similar to the roles of 0 and 1 in the real numbers.

A2.5.aFind the additive and multiplicative inverses of square matrices, using technology as appropriate.A2.5.bExplain the role of the determinant in determining if a square matrix has a multiplicative inverse.
Khan Academy Resources
Find the inverse of a 2x2 matrixDetermine invertible matricesUse matrices to solve systems of equations
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