Enrich · Mathematics Extension 1 11–12 – Year 12 · Inverse trigonometric functions

Enrich Examine the properties sin^(- 1)(- x) = - sin^(- 1)⁡x, cos^(- 1)⁡(- x) = π - cos^(- 1)⁡x, tan^(- 1)⁡(- x) = - tan^(- 1)⁡x and cos^(- 1)x + sin^(- 1)x = π/2 using graphing applications and prove them algebraically

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