Proving trigonometries identities is a type of question that is struggled by many students. The common errors can stem from having serious algebraic misconceptions that they carry forward from lower secondary or they simply do not know the proper techniques to prove. More often than not, students will basically apply on whatever formulas they can […]

## A Maths Tuition Prelim Paper Nan Hua High Binomial Expansion

This question was extracted from Nan Hua High School Sec 4 A Maths Mid year Exam 2018. Remember the use of algebraic expansion in sec 2 whereby where most students will just expand it as . The truth is that students are expected to memorise to have an edge over others as well as […]

## A Maths Tuition Prelim Paper Methodist Girls School Equations and inequalities

Let’s have a look at another question from Methodist Girls School (MGS Prelim 2016 AMath Paper 2 Q 1b) This question is in line with the 4047 Syllabus where students have to know “Conditions for to be always positive (or always negative)” Above extracted from SEAB. Question: Determine the conditions for and such […]

## A Maths Tuition Prelim Paper St. Margaret’s Sec Equations and inequalities

Let’s take a look at this A maths question on Equations and Inequalities. A handful of students will be confused with the keywords or how to effectively determine the correct sign of the discriminant. The example below is very similar to St Margaret 2016 A Math Prelim Paper 1 Q2. Original Question: Find the range of values of for […]

## PJC 2017 Prelim JC H2 Maths Complex Numbers

Lets analyse this Complex Numbers question from JPJC 2017 JC H2 Maths Prelim Paper 2. Increasingly asked in many different prelim questions, this type of question, which usually contains the keywords “purely real” or “purely imaginary”. The technique to solve this type of question is generic, as we will discuss in detail below. Q4 (ii). The complex […]

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