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Answer 1

Answer:

Although analytic geometry was far and away Descartes' most important contribution to mathematics, he also: developed a “rule of signs” technique for determining the number of positive or negative real roots of a polynomial; “invented” (or at least popularized) the superscript notation for showing powers or exponents René Descartes invented analytical geometry and introduced skepticism as an essential part of the scientific method. He is regarded as one of the greatest philosophers in history. His analytical geometry was a tremendous conceptual breakthrough, linking the previously separate fields of geometry and algebra.