2025 IGCSE 0580 May/June P23 Q23

2025 IGCSE 0580 May/June P23 Q23

6 marks
  1. Write down the value of \(\cos90^\circ\).[1]
  2. The diagram shows two different right-angled triangles joined by a common side.
    Find \(x\) in terms of \(n\).[5]

Solution:

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Answer:(a) \(0\). (b) \(x=\dfrac{4n\sqrt3}{3}\).

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