Linear Simultaneous Equations - Elimination What are simultaneous linear equations? When you have more than one equation in more than one unknown, then you are dealing with simultaneous equations A...
Further Solving Quadratic Equations (Hidden Quadratics) What are hidden quadratic equations? Hidden quadratic equations are quadratics written in terms of a function A normal quadratic appears in t...
作为申请热门的经济、商科、金融等专业，申请竞争一直很激烈，想要从中脱颖而出，商科学术活动不可或缺。其中，NEC学术活动一直备受热捧，热爱商业和经济知识的你怎能错过？ NEC学术活动的含金量极高，是申请经济...
AP课程作为美国大学的先修课程，相信不少准备留美的学生和家长们应该都有一定的了解。目前AP课程涉及广泛，有三十多门的学科选择，并且AP考试没有规定的必修科目。如果没有明确的目标专业，选课会非常令人头秃。 ...
Solving Quadratic Equations Solving quadratic equations We can solve quadratic equations when they are written in the form If given an unusual looking equation, try to rearrange it into this form f...
Completing the square What is completing the square? Completing the square is another method used to solve quadratic equations It simply means writing in the form It can be used to help find other...
Discriminants What is a discriminant? The discriminant is the part of the quadratic formula that is under the square root sign It is sometimes denoted by the Greek letter (capital delta) How does ...
作为申请热门的经济、商科、金融等专业，申请竞争一直很激烈，想要从中脱颖而出，商科学术活动不可或缺。其中，NEC学术活动一直备受热捧，热爱商业和经济知识的你怎能错过？ NEC经过20余年的发展与积累，每年有超...
上海交通大学附属中学IB课程中心作为上海市首批实验性示范性一流高中，上海交大附中一直致力成为基础教育领域改革的先锋。上海交大附中IB中心开放2023级入学申请！ 交中IB 2023级新生招生计划 招生人数：100-120...
Quadratic Graphs What are quadratic graphs? The general equation of a quadratic graph is Their shape is called a parabola ("U" shape) Positive quadratics have a value of so the parabola is uprigh...
Surds - Rationalising the Denominator What does it mean to rationalise a denominator? Rationalising a denominator changes a fraction with surds in its denominator, into an equivalent fraction where...
Manipulating Surds What are surds? If n is a positive integer and is not a square number, then √n (or any multiple of √n ) is a surd Surds are examples of irrational numbers What do I need to know ...
