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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.

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### Calculating with cosines

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?

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### Trig identity

In this short challenge, can you use angle properties in a circle to figure out some trig identities?

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### Tangled Trig Graphs

Can you work out the equations of the trig graphs I used to make my pattern?