Conjecture Let (x1, y1) and (x2, y2) be points onthe unit circle corresponding to t = t1 and t = π − t1,respectively.(a) Identify the symmetry of the points (x1, y1) and(x2, y2).(b) Make a conjecture about any relationship betweensin t1 and sin(π − t1).(c) Make a conjecture about any relationship betweencos t1 and cos(π − t1).

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