Unit 3: Geometry and Trigonometry

Topic 3.9: Reciprocal & inverse trig (HL only) Questions

Practice 20 exam-style questions for IB Math AA SL Topic 3.9. Review the question stems below, then unlock the full Question Bank to access markschemes, model answers, and AI grading.

11 mark
2026
sec θ is undefined when:
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21 mark
2026
To solve cot x = 1, the quickest first move is to:
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31 mark
2026
If cos θ = 4/5, then sec θ =
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41 mark
2026
arccos(1) equals:
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5Find1 mark
2026
Find .
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61 mark
2026
The domain of arcsin x is:
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71 mark
2026
cos(arccos(0.7)) equals:
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81 mark
2026
1 + cot²θ equals:
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9Find3 marks
2026
Find the exact value of sin(arccos(5/13)).
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101 mark
2026
The graph of y = arcsin x is obtained from y = sin x (on [−π/2, π/2]) by:
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11State3 marks
2026
State the domain and range of f(x) = arctan x, and the equations of its asymptotes.
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121 mark
2026
For y = arcsin x, the value arcsin(sin(5π/6)) is:
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13Solve3 marks
2026
Solve 3 csc x = 6 for 0 ≤ x < 2π.
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14Find3 marks
2026
Find the exact value of csc(π/3), sec(π/4) and cot(π/6).
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151 mark
2026
Which expression equals sec²θ − tan²θ for all valid θ?
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16Solve2 marks
2026
Solve arcsin(x − 1) = π/6.
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17Find3 marks
2026
Given that tan θ = 2 and θ is acute, find the exact value of sec θ.
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18Find3 marks
2026
Find the exact value of arccos(0), arcsin(−√2/2) and arctan(1).
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19Sketch3 marks
2026
The function f(x) = arccos x has domain −1 ≤ x ≤ 1. Sketch y = f(x), giving the coordinates of the endpoints, and write down f(1/2).
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20Explain2 marks
2026
Explain why is defined only for , and why its range is restricted to .
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