Master the hardest parts of GCSE and IGCSE and get ahead with A-level maths topics.

In this course you'll start by looking in depth at the sine and cosine rules for the area of a triangle. You'll think carefully about how to extent the definitions of sin cos and tan to angles of any size and to solve. You'll learn about some exact forms for these ratios and be confident in solving equations using sin cos and tan. This will including quadratics in these functions and problems where you have to apply trigonometric identities before solving the equation.

  • Suitable for students at the end of GCSE/IGCSE or the start of A-level (usually ages 15-17).

  • Learn by doing - as well as video introductions, each of the 5 chapters is organised around a contains an original downloadable worksheet.

  • Each worksheet has a range of easier and harder questions as well as some 'starred' questions to stretch the strongest students.

  • Every question in each worksheet has a fully explained video solution.

  • Free preview sections available after logging in (no payment details needed).

  • Available 24/7, go at your own pace. No ads, no distractions.

Reviews for Mathsaurus online courses

Sine and Cosine Rules

Joseph Donovan

A challenging topic delivered with searing exposition and clarity. Makes you fall in love with maths and want to do nothing all day but maths!

A challenging topic delivered with searing exposition and clarity. Makes you fall in love with maths and want to do nothing all day but maths!

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Nothing like it

Divij Divij

Amazing content and great user interface of the website, made it easy to navigate and answer through the questions.

Amazing content and great user interface of the website, made it easy to navigate and answer through the questions.

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Wish we had this course years ago

patrick ludden

This is a fantastic course and my children and I are really enjoying the material and looking forward to more great learning.

This is a fantastic course and my children and I are really enjoying the material and looking forward to more great learning.

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  • £19.00

    £19.00Trigonometry + trigonometric equations

    1 Year enrolment
    Get me ready!

  • £29.00

    £29.00Trigonometry + trigonometric equations

    2 Year enrolment
    Get me ready!

  • £39.00

    £39.00Trigonometry + trigonometric equations

    Unlimited enrolment
    Get me ready!

This course is also available as part of a bundle...

Get ready for A-level maths

Save money by signing up for the full bundle 'Get Ready for A-Level maths', containing 5 courses just like this one on a range of topics that will help you master the final stages of GCSE or IGCSE maths and get ready to start AS or A-level!
Get me ready!

Course curriculum

Free preview includes teaching videos for all 25 modules.

Teacher

Kevin Olding

Kevin Olding is an experienced teacher and tutor, having worked for 7 years at two leading independent schools in London, and for over a decade as a private tutor. He holds a First Class MMATH Mathematics degree from Magdalen College, Oxford, an MSc in Applied Statistics from Birkbeck, University of London (Distinction and prize for best overall performace), MRes in Statistical Applied Mathematics (Distinction and soon PhD) from the University of Bath, as well as a degree in Law. He is also the creator of the Mathsaurus YouTube channel, which has tens of thousands of subscribers and millions of video views.

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