所謂尐寧
Abstract: Currently, means to calculate distance from point to line comprise Vector method, right-angled triangle calculation, Cauchy's inequality, intergral deformation analysis, translation of coordinate axes, etc. Based on the above approaches and combined with the knowledge the author has acquired at high school, this thesis elaborates on seven novel deductive methods, namely similarity method, rotation method, Vitea theorem, symmetric method, discriminant method, Pythagorean theorem and translation method to calculate the distance between point and line, with a view to innovate mathematical thinking and learning and integrate mathematics knowledge taught at secondary school.Key word: point, line, distance, Cauchy's inequality, right-angled triangle, translation, Pythagorean theorem, Vitea theorem, rotation, similar triangles
秉诚装饰
We Never Told Him He Couldn't Do It My son Joey was born with club feet. The doctors assured us that with treatment he would be able to walk normally - but would never run very well. The first three years of his life were spent in surgery, casts and braces. By the time he was eight, you wouldn't know he had a problem when you saw him walk . The children in our neighborhood ran around as most children do during play, and Joey would jump right in and run and play, too. We never told him that he probably wouldn't be able to run as well as the other children. So he didn't know. In seventh grade he decided to go out for the cross-country team. Every day he trained with the team. He worked harder and ran more than any of the others - perhaps he sensed that the abilities that seemed to come naturally to so many others did not come naturally to him. Although the entire team runs, only the top seven runners have the potential to score points for the school. We didn't tell him he probably would never make the team, so he didn't know. He continued to run four to five miles a day, every day - even the day he had a 103-degree fever. I was worried, so I went to look for him after school. I found him running all alone. I asked him how he felt. "Okay," he said. He had two more miles to go. The sweat ran down his face and his eyes were glassy from his fever. Yet he looked straight ahead and kept running. We never told him he couldn't run four miles with a 103-degree fever. So he didn't know.
美罗Tutu
Abstract: The current "point to the straight line distance formula deduced many ways, such as using the vector method, solve the right triangle method, the Cauchy inequality, the overall deformation of the law and coordinate translation method. This article focuses on the derivation of methods based on the combination of high school to learn the knowledge content, use a similar method, rotation method, the Vieta theorem Act, "Symmetry", "discriminant method, the hook share theorem "and" pan "the seven novel derivation method to derive the" point to a straight line distance formula, broaden their mathematical thinking, mix together the intellectual content of the chapters of the secondary school.Keywords: point; straight line; distance; Cauchy inequality; right triangle; pan; the Pythagorean theorem; Vieta theorem; rotation; similar triangles
沈阳硅藻泥
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