List

Trigonometry A2

Tri-angled Trig
problem

Tri-Angled Trig

Age
16 to 18
Challenge level
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Can you justify this equation involving three angles?

Making Waves
problem

Making Waves

Age
16 to 18
Challenge level
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Which is larger cos(sin x) or sin(cos x) ? Does this depend on x ?

Loch Ness
problem
Favourite

Loch Ness

Age
16 to 18
Challenge level
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Draw graphs of the sine and modulus functions and explain the humps.

Trig identity
problem

Trig Identity

Age
16 to 18
Challenge level
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In this short challenge, can you use angle properties in a circle to figure out some trig identities?

t for Tan
problem
Favourite

T for Tan

Age
16 to 18
Challenge level
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Can you find a way to prove the trig identities using a diagram?