Hi, I'm Kevin, your teacher for this course!
I studied maths at Oxford University and learnt to teach at some of the UK's most prestigious private schools. I'm also an experienced and highly sought after private tutor with a popular maths YouTube channel. I've created these Mathsaurus courses so you can learn to do maths like the very best on a fraction of the budget.
This course has been designed to replicate the experience of private tuition, with video hints and solutions as you work through the course that make it feel like you're in a real lesson.
I really enjoyed making this course and I hope that as well as learning a lot you're going to have fun along the way too. In the video introduction below I'll tell you more about the course. Then if you're ready to get started you can sign up for the free preview or the full course or learn more about it further down the page.
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!
Read LessNothing 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.
Read LessWish 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.
Read LessOr sign up now and get started immediately!

£19.00
Trigonometry + trigonometric equations
30 days enrolment 
£29.00
Trigonometry + trigonometric equations
1 Year enrolment 
£39.00
Trigonometry + trigonometric equations
2 Year enrolment
This course is also available as part of a bundle...
Get ready for Alevel maths
Master the hardest parts of GCSE and IGCSE and get ahead with Alevel 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 Alevel (usually ages 1517).

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.
Course curriculum
Free preview includes teaching videos for all 25 modules.


Sine rule 1
FREE PREVIEW 
Sine rule 2  the ambiguous case
FREE PREVIEW 
Cosine rule
FREE PREVIEW 
Area of a triangle
FREE PREVIEW 
Bearings
FREE PREVIEW 
Worksheet D1: Sine and cosine rules and area of a triangle
FREE PREVIEW 
Upgrade to the full course to continue learning!
FREE PREVIEW 
Question 1 abc

Question 1 def

Question 2

Question 3

Question 4

Question 5

Question 6 hint

Question 6

Bouns: Proof of sine and cosine rules (Mathsaurus YouTube)



Solving equations involving sin(x) for any angle

Solving equations involving cos(x) for any angle

Solving equations involving tan(x) for any angle

Worksheet D2: Solving trig equations for any angles

Question 1

Question 2

Question 3

Question 4 hint

Question 4

Question 5 hint

Question 5



Exact values of sin cos and tan

Exact values beyond 90 degrees

Worksheet D3  Exact trigonometric ratios

Question 1

Question 2

Question 3

Question 4 hint

Question 4

Question 5



Harder trig equations part 1

Harder trig equations part 2

Worksheet D4  Solving harder trig equations

Question 1

Question 2

Question 3 hint

Question 3

Question 4 hint

Question 4

Question 5 hint

Question 5



tanx=sinx/cosx

sin^2(x)+cos^2(x)=1

Example using tanx=sinx/cosx

Example using sin^2(x)+cos^2(x)=1

Worksheet D5  Using trig identities to solve equations

Question 1

Question 2

Question 3 hint

Question 3

Question 4 hint

Question 4

About this course
 59 lessons
Teacher
Kevin Olding
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