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Resources tagged with Trigonometric identities similar to Sine and Cosine for Connected Angles:

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Challenge level: Challenge Level:1 Challenge Level:2 Challenge Level:3

Other tags that relate to Sine and Cosine for Connected Angles
Pythagoras' theorem. Generalising. Vector algebra. Cosine. Trigonometric identities. Periodicity. Sine. Tangent. Complex numbers. Graphs.

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Broad Topics > Trigonometry > Trigonometric identities

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Sine and Cosine for Connected Angles

Stage: 4 Challenge Level: Challenge Level:2 Challenge Level:2

The length AM can be calculated using trigonometry in two different ways. Create this pair of equivalent calculations for different peg boards, notice a general result, and account for it.

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Round and Round a Circle

Stage: 4 Challenge Level: Challenge Level:1

Can you explain what is happening and account for the values being displayed?