answer:Reading a history of math can be interesting, to give you an insight how a mathematician was able to develop a principle and what insight he had to come up with a theorem. But it will not teach you how to solve problems using that theorem. You might read about Newton and how he developed calculus. But you won’t learn how to solve for the area under a curve, or what the inflection point on a curve is, or what the rate of change is. To learn that stuff, you need a course in which you learn the theorem and the mechanics of using it. My best math teachers used the history of math in courses to introduce new concepts and topics, But it still required learning the math. It was great trying to solve the Seven Bridges of Konigsberg Problem, and then how Euler proved it impossible. But that was simply an introduction to topology and advanced mathematics. Math does not progress very quickly, so that textbooks from 30 years ago are still relevant. Same with most introductory science texts. No need to go through the expense of having the latest edition text book that explains the Side-Angle-Side Theorem of Triangle Congruence.