Shape and Space 10
2 marks · EasyCalculate the value of .
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0 (±0.01)
Also accept: 0.0
Common mistakes: 1; -1
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Marking points
M1 · 1 mark · Attempts to find the value of using calculator or knowledge of the cosine graph.
A1 · 1 mark · Gives correct value: 0.
Worked solution
(from the cosine graph or a calculator).