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Mathematics LibreTexts

9.10.2: Key Equations

  • Page ID
    116438
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    Key Equations

    Identity matrix for a 2×2 2×2 matrix I 2 =[ 1 0 0 1 ] I 2 =[ 1 0 0 1 ]
    Identity matrix for a 3×3 3×3 matrix I 3 =[ 1 0 0 0 1 0 0 0 1 ] I 3 =[ 1 0 0 0 1 0 0 0 1 ]
    Multiplicative inverse of a 2×2 2×2 matrix A −1 = 1 adbc [ d b c a ],where adbc0 A −1 = 1 adbc [ d b c a ],where adbc0

    9.10.2: Key Equations is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts.

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