6.5 Inverse Trigonometric Functions
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A specialized sonar sensor calculates the angle of reflection α\alphaα, in radians, from a submerged object at distance xxx meters using the model:

α(x)=arcsin⁡(2x−115)\alpha(x) = \arcsin\left(\frac{2x - 11}{5}\right)α(x)=arcsin(52x−11​)

Determine the maximum possible domain of α\alphaα.

Select the correct option:

  1. {x∈R:3≤x≤8}\{x \in \mathbb{R} : 3 \le x \le 8\}{x∈R:3≤x≤8}
  2. {x∈R:−1≤x≤1}\{x \in \mathbb{R} : -1 \le x \le 1\}{x∈R:−1≤x≤1}
  3. {x∈R:−π2≤α≤π2}\{x \in \mathbb{R} : -\frac{\pi}{2} \le \alpha \le \frac{\pi}{2}\}{x∈R:−2π​≤α≤2π​}
  4. {x∈R:3<x<8}\{x \in \mathbb{R} : 3 < x < 8\}{x∈R:3<x<8}
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6.5 Inverse Trigonometric Functions Questions

Practise Edexcel A Level Maths 6.5 Inverse Trigonometric Functions with exam-style questions for A Level Maths. 6 questions, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

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6.5 Inverse Trigonometric Functions Questions

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