Retracted Article Sidebar Published: Dec 23, 2023 DOI: https://doi.org/10.52783/tjjpt.v44.i5.3620 Keywords: Wronskian, Sturm-separation theorem, zeroes of a function, linearly independent functions, Rolle’s Theorem, convex function, concave function, increasing, and decreasing functions. Main Article Content Retracted Abstract Retracted Article Details Issue Vol. 44 No. 5 (2023) Section Articles