Which of these packaging design elements is genuinely associated with Texas Instruments graphing calculators?

The world of mathematics education products is filled with clever marketing strategies and memorable brand identities. From textbook publishers to calculator manufacturers, these companies have crafted distinct packaging designs and advertising slogans to stand out in the educational marketplace. Test your knowledge of how mathematics products are marketed and branded in this challenging trivia question!

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The distinctive yellow and black "slide case" design that has remained largely unchanged since the 1990s
The "Math Magic" holographic seal that changes equation patterns when viewed from different angles
The "Fractal Frontier" packaging featuring recursively smaller boxes within the main product box
The "Golden Ratio" box dimensions precisely following the 1:1.618 proportions for aesthetic appeal