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Texas Instruments
9-12
45 Minutes
TI-Nspire™TI-Nspire™ CAS
1.7
Students will use learn about inverse matrices in the context of encoding/decoding secret messages and then use inverse matrices to solve systems of equations.
On page 1.4, students are given the definition of the inverse of a 2 × 2 matrix, and they are asked to find the inverse of the encoding matrix on page 1.5.
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