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Difficulté 1
When ø is small, show that [tan 5ø + sin ø - cos 3ø +1] / [4ø + sin 2ø] = 1/4 (3ø + 4)
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Pure Mathematics
Difficulté 1
Find cos 0.108 rad to 6 dp. Find an approximation for cos 0.108 rad. Calculate the percentage error in your approximation. Calculate the percentage error in the approximation for cos 0.6 and explain the difference in this percentage error.
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