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Cambridge IGCSE Mathematics practice

exam practice - Understand the precise values of sine and cosine for angles 0°, 30°, 45°, 60°, and 90°, as well as the tangent values for angles 0°, 30°, 45°, and 60°. - Exact trigonometric values

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Exact trigonometric values

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Paper 2Core or Extended Mathematics3 marks

Understanding tangent values helps in solving right triangle problems without a calculator.

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Tangent Values

Use the exact values of tangent for the angles 0°, 30°, 45°, and 60° to answer the following question.

  1. a

    Calculate the exact value of tan 60°.

    Aim for approximately 3 distinct marking points.

    [3]

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  • Topic focus: Exact trigonometric values.
  • Question style: structured_mathematics.
  • Reasoning demand: reasoning.
  • Check the operation, notation, units, and final answer form against the question before moving on.

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Paper 2 structured question: Exact trigonometric values

Paper 2Core or Extended Mathematics2 marks

Description

Trigonometric Values

Use the exact values of sine, cosine, and tangent for the angles 0°, 30°, 45°, 60°, and 90° to answer the following questions.

  1. a

    Calculate the exact value of sin 45°.

    Aim for approximately 2 distinct marking points.

    [2]