Prove the identity
for all values of for which both sides are defined.
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Practice IB Mathematics Analysis and Approaches (AA) Topic SL 3.5—unit Circle Definitions of Sin, Cos, Tan. Exact Trig Ratios, Ambiguous Case of Sine Rule with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for SL 3.5—unit Circle Definitions of Sin, Cos, Tan. Exact Trig Ratios, Ambiguous Case of Sine Rule and mirrors Paper 1, 2, 3 style where relevant.
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Prove the identity
for all values of for which both sides are defined.
…
A point moves around the unit circle centered at the origin with coordinates .
At a certain instant, the -coordinate of is . Find all possible values of .
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A point moves around the unit circle centered at the origin with coordinates . The -coordinate of is .
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A point moves around the unit circle centered at the origin with coordinates , where is measured in radians.
At a certain instant, the -coordinate of is . Find all possible values of .
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A point moves around the unit circle centered at the origin with coordinates .
The -coordinate of is .
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