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Published by Afterschool.my on Jan 18, 2021, 03:03 pm
Who says there is no art in Mathematics?
Ever been stumped during Math exams because you just can't remember how to get a tan (x) when given sin (x) and cos (x)? trust me, you'll need to know this until the very end of your uni years!
In trigonometry, it is common to use mnemonics (the study and development of systems for improving and assisting the memory) to help remember trigonometric identities and the relationships between the various trigonometric functions.
For example, the sine, cosine, and tangent ratios in a right triangle can be remembered by representing them as strings of letters, for instance SOH-CAH-TOA in English:
Sine = Opposite ÷ Hypotenuse
Cosine = Adjacent ÷ Hypotenuse
Tangent = Opposite ÷ Adjacent
One way to remember the letters is to say the short forms out loud. Another method is to expand the letters into a sentence, such as "Some Old Houses Can Always Hide Their Old Age".
If you speak Chinese (especially the Hokkien dialect), you can also remember it as TOA-CAH-SOH, which also means 'big-footed woman'.
Let us tell you about another way to remember which combination of trigonometry function goes with which one to produce another one. Confused?
This powerful mnemonic is easily reproducible by memory, with functions on one side and co-functions on the other, a 1 in the middle, and three triangles pointed down.
Here's a list on how best to read this diagram:
If you’re looking for any last-minute additions to your library of workbooks, why not download Afterschool’s SPM 2021 February Spot Questions right here for absolutely FREE! Covering subjects from Bahasa Malaysia and Additional Mathematics to Physics and Chemistry, these questions have been meticulously curated by dedicated teachers based on papers from previous years. The SPM 2021 February Spot Questions consists of spot questions based on a 10-year analysis of past year papers identified by teachers with 20+ years of experience.
Andrew Lim, Ketua Portfolio ACCA Maritim Asia Tenggara, menyampaikan Anugerah Platinum ACCA kepada Josephine Tan, Pengarah Kampus Taylor’s College.Taylor’s College telah diiktiraf sebagai ACCA Platinum Approved Learning Partner, yang merupakan pengiktirafan tertinggi oleh Association of ..
Andrew Lim, Portfolio Head, ACCA Maritime Southeast Asia, presenting the ACCA Platinum Award to Taylor’s College, represented by Josephine Tan, Campus Director, Taylor’s College.Taylor’s College has recently reached a significant milestone, achieving the prestigious ACCA Platinum A..
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Multimedia University (MMU) as reached another remarkable milestone by being named one of the Top 5 Universities in the Private Higher Education category at the 7th Graduates rsquo; Choice Award (GCA) 2024. The award was presented to Pn. Hayati binti Othman, Senior Director of Human Capital Manageme..
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How MMU Alumna Syahirah Farok Made the Leap from Teaching to Corporate SuccessThe Faculty of Engineering and Technology (FET) hosted a one-day experiential event titled “INTRODUCTION TO MMU MELAKA ENGINEERING DIPLOMA PROGRAMMES” (PENGENALAN PROGRAM DIPLOMA KEJURUTERAAN DI MMU MELAKA) for..
If you're a teacher considering jumping into a corporate role, it’s more than possible — and many have done it successfully. One such person is Syahirah Farok, who made the transition after a rewarding career in education. Born in Selangor, Syahirah completed her undergraduate s..
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