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Pre-Calculus Trigonometric functions

Trig values at special angles

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Questions
Question 1
186463
Which pair of triangles gives the \(\textbf{exact}\) values of sine, cosine and tangent at \(30^\circ\), \(45^\circ\) and \(60^\circ\)?
The \(45^\circ\)-\(45^\circ\)-\(90^\circ\) and \(30^\circ\)-\(60^\circ\)-\(90^\circ\) triangles

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