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Cambridge IGCSE Additional Mathematics

10.5Trigonometric equations

Trigonometric equations in Cambridge IGCSE Additional Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic40 practice questions2 lessons
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Learning objectives

What the syllabus expects you to be able to do.

  1. 10.5Solve trigonometric equations involving the six functions in a given domain, using the identities where needed.

Lessons

  • Solving trigonometric equations

    45 min

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  • Trigonometric equations using identities

    45 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Trigonometric equations: sample question

1 mark

Which quadratic in cos⁡x\cos x is equivalent to 2sin⁡2x+3cos⁡x=02\sin^2 x + 3\cos x = 0?

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