Question: QUESTION 9 Si cos(0) = - IN - QUESTION 9 Si cos(O) 18 0 4 v/3i 81 81 18 2 < O < r, entonces

QUESTION 9 Si cos(0) = - IN -
QUESTION 9 Si cos(O) 18 0 4 v/3i 81 81 18 2 < O < r, entonces sin(20) es:
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