### Areas of PolygonsPublished on Use determinants of matrices as a tool to find the areas of triangles and quadrilaterals. | TI-Nspire™ CX TI-Nspire™ CX CAS TI-Nspire™ Navigator™ TI-Nspire™ TI-Nspire™ CAS
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### Matrix InversesPublished on Modify a 2 X 2 matrix being multiplied by another 2 X 2 matrix until their product is the identity matrix. | TI-Nspire™ CX TI-Nspire™ CX CAS TI-Nspire™ Navigator™ TI-Nspire™ TI-Nspire™ CAS
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### Matrix MultiplicationPublished on Examine matrix multiplication to identify the conditions necessary to be able to multiply two matrices. | TI-Nspire™ CX TI-Nspire™ CX CAS TI-Nspire™ Navigator™ TI-Nspire™ TI-Nspire™ CAS
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### Solving Systems with Row Operations 1Published on Use row operations to reduce an augmented matrix to its reduced row-echelon form. | TI-Nspire™ CX TI-Nspire™ CX CAS TI-Nspire™ Navigator™ TI-Nspire™ TI-Nspire™ CAS
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### Solving Systems with Row Operations 2Published on Use matrices as a tool to solve a system of three equations with three unknowns. | TI-Nspire™ CX TI-Nspire™ CX CAS TI-Nspire™ Navigator™ TI-Nspire™ TI-Nspire™ CAS
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