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Trigonometry Feature
This feature showcases 8 problems all involving trigonometry. When exploring these problems you will be asked to prove trigonometrical results, sketch graphs of trig functions and solve other problems involving trig.
The closing date for solutions to our live problems is Monday 17th April 2023.
Calculating with Cosines
Age 14 to 18
Challenge Level 
If I tell you two sides of a right-angled triangle, you can easily work out the third. But what if the angle between the two sides is not a right angle?
T for Tan
Age 16 to 18
Challenge Level
Can you find a way to prove the trig identities using a diagram?
Trig Identity
Age 16 to 18
Challenge Level
In this short challenge, can you use angle properties in a circle to figure out some trig identities?
Tangled Trig Graphs
Age 16 to 18
Challenge Level
Can you work out the equations of the trig graphs I used to make my pattern?
Loch Ness
Age 16 to 18
Challenge Level
Draw graphs of the sine and modulus functions and explain the humps.
Making Waves
Age 16 to 18
Challenge Level
Which is larger cos(sin x) or sin(cos x) ? Does this depend on x ?
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