Inverse sine (sin⁻¹)

Key term for Edexcel GCSE Mathematics, used in Mensuration and Calculation.

Definition

The inverse trigonometric function used to find a missing angle when the sine of that angle is known.

Exam Context

Inverse sine (sin⁻¹) appears in Edexcel GCSE Mathematics revision content for Geometry and Measures, especially Mensuration and Calculation and Area of a Triangle.

Geometry and Measures Mensuration and Calculation Area of a Triangle

Found in Revision Notes

Geometry and Measures

Area of a Triangle

Mensuration and Calculation • Area of a Triangle

Revise note

Related Key Terms

Included angle Non-right-angled triangle SAS Sine rule for area

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Sine (sin)