Final answer:
Luca Pacioli studied the properties and applications of the Golden Ratio but did not apply it to solve cubic equations, architectural aesthetics, disprove its significance, or ignore it; he made theoretical contributions to its understanding during the Renaissance.
Step-by-step explanation:
In his studies of the Golden Ratio, Luca Pacioli made significant contributions to its understanding but did not use it to solve cubic equations, apply it directly to architectural aesthetics, disprove its mathematical significance, or ignore it. Instead, his work was more theoretical and focused on the properties and applications of the Golden Ratio.
Notably, during the Renaissance, the Golden Ratio was a topic of great interest, particularly among artists and architects who sought to integrate mathematical proportion and perspective into their work to mimic nature and achieve a sense of aesthetic beauty.