學校沒有教的數學

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文憑試實戰篇 #21 複數 Complex Numbers

Thomas 講解關於複數 Complex Numbers 的文憑試題目，並分享運用計數機的小貼士。複數 Complex numbers 的四則運算: https://youtu.be/BUkde...

2019-10-09 11:12:03 有 7,633 人看過有 130 人說讚

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如何訂立目標? 訂立目標的基本原則

Thomas 介紹訂立目標的方法。一個恰當的目標，就是推動我們前進的力量。 ~頻道介紹~ 專為香港中學生而設的頻道，講解各種數學解題技巧及概念，以應付 HKDSE 數學科考試。學校沒有教的數學網...

2019-09-12 19:40:36 有 1,057 人看過有 30 人說讚

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計數機上的 EXP 按鍵有咩用?

Thomas 講解計數機上 EXP 按鍵的用途，並介紹單位字首 Unit Prefix。 ~頻道介紹~ 專為香港中學生而設的頻道，講解各種數學解題技巧及概念，以應付 HKDSE 數學科考試。學校...

2019-07-09 19:18:15 有 4,052 人看過有 63 人說讚

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中三選科講座 ─ M1/M2 只是半科，唔讀好蝕底?

Thomas 分享他對中三選科的看法，當中談及各數理科以及ICT。影片內容： 0:48 Physics 物理 10:14 Chemistry 化學 14:35 Biology 生物 17:26 M...

2019-05-30 19:44:10 有 34,666 人看過有 732 人說讚

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HCF×LCM 原來等於...

任何兩個正整數，它們的積必定等於它們的HCF及LCM之積。而這性質同樣適用於代數式。 ~頻道介紹~ 專為香港中學生而設的頻道，講解各種數學解題技巧及概念，以應付 HKDSE 數學科考試。學校沒有...

2019-04-03 12:52:07 有 3,789 人看過有 92 人說讚

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HKDSE 2018 數學科 Paper II Q33 題解 (2018/II/Q33)

Thomas 運用三種不同的方法來解答此題。此題涉及 log 和直線方程，在試卷二經常出現，但亦曾經在試卷一出現。 ~頻道介紹~ 專為香港中學生而設的頻道，講解各種數學解題技巧及概念，以應付 HK...

2019-04-02 16:10:55 有 2,991 人看過有 48 人說讚

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Top 5 學極都唔識的數學

Thomas 同大家分享首五位怎麼學仍是不懂的數學課題。這些全都是很簡單的課題，但有不少學生總是重複犯錯，就是學極都唔識。 ~頻道介紹~ 專為香港中學生而設的頻道，講解各種數學解題技巧及概念，以應付...

2019-04-01 10:30:02 有 10,524 人看過有 260 人說讚

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數列通項的公式明明是 n−1，為何有時會變成 n?

數列通項的公式會有 n-1 這部份，但有時正確答案卻變成 n。 Thomas 講解當中的原因。 ~頻道介紹~ 專為香港中學生而設的頻道，講解各種數學解題技巧及概念，以應付 HKDSE 數學科考試。 ...

2019-02-19 21:16:09 有 4,243 人看過有 63 人說讚

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可計算兩平面之交角的神秘公式，HKDSE 考生絕不能錯過！

Thomas 講解一條能計算兩平面之交角的神秘公式，此公式能秒解原本是超困難的 3D 題目，HKDSE 考生絕不能錯過。參考資料: https://en.wikipedia.org/wiki/Di...

2019-01-04 20:47:07 有 23,624 人看過有 591 人說讚

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文憑試實戰篇 #20 直角三角形的內心 Incentre of Right-angled Triangle

Thomas 講解兩題與三角形內心 Incentre 相關的題目，包括 2006/II/Q48 及 2017/II/Q41。這兩題的答對率都低於 25%。求內心 (Incentre)坐標的方法: ...

2018-12-10 13:04:57 有 6,426 人看過有 122 人說讚