Trigonometry

Trigonometry

Secondary 3
3 marks

Without a calculator, evaluate

  1. \(\sin 30^\circ + \cos 60^\circ\)

  2. \(\tan 45^\circ \times \cos 30^\circ\)

  3. \(2 \sin 60^\circ - \cos 0^\circ\)

Give exact answers.[3]

Solution:

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Answer:(a) \(1\) (b) \(\frac{\sqrt3}{2}\) (c) \(\sqrt3-1\)

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