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  • About
    • Our Philosophy
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      • JC General Paper
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      • Studying Tips
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      • JC Chemistry
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  • Testimonials
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    • A-level H2 Mathematics (9758) Suggested Solutions (2017 – 2021)
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Archives

Tag Archives for: "Concept"
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By KS Teng
In JC Mathematics
Posted July 20, 2015

Vectors: Ratio Theorem

As we all know, the Ratio Theorem is given in MF15. But some students struggle to fit in the and every time. They will then attempt to draw a bit and see it helps. Here’s a solution for [...]

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3
By KS Teng
In JC Mathematics
Posted July 16, 2015

What does unbiased in Math mean?

Some of your school notes will mention and explain the definition of unbiased and consistency. But let us just discuss what unbiased means as we do see it quite often in A-level. What does its [...]

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0
By KS Teng
In JC Mathematics
Posted July 15, 2015

Intuition of Mathematical Induction

Many students have asked me about Mathematical Induction, like whats the idea behind it. Especially since I always emphasize the importance of . So lets try to make some sense of this long and [...]

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1
By KS Teng
In JC Mathematics
Posted July 15, 2015

Will it ever converge?

If KS travels half the distance to the bus stop for every move, will he ever reach the bus stop? The answer is that I will never reach the bus stop, but could make arbitrarily close to it. This [...]

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1
By KS Teng
In JC Mathematics
Posted July 14, 2015

What is r-value

Many students asked me what exactly is r-value. They are always confused with the idea of correlation and causation. If you’re still confused, let me first establish that r-value implies [...]

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0
By KS Teng
In JC Mathematics
Posted July 13, 2015

Why can’t we extrapolate regression lines

Many students memorise the standard answer, that is, when the estimated data is not within range, we are extrapolating so it is not reliable. But why is it unreliable! Consider an example of [...]

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By KS Teng
In JC Mathematics
Posted July 12, 2015

Completing the square

This is a very old-school and technical method we learnt in secondary school. However, many students are unable to do it accurately still. The trick of completing the square is realising that it [...]

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1
By KS Teng
In JC Mathematics
Posted July 11, 2015

Vectors: Cross vs Dot Product

Many students have asked me why is there a difference between cross(vector) and dot(scalar) product, after all it is like multiplying. For starters, the former produces a resultant vector while [...]

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