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28.04.2021 •
Mathematics
2. Is sin(sin x) = sin(sinx) an identity? Why or why not?
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Ответ:
Construct a line parallel to segment XZ
Draw a line l passing through vertex Y parallel to XZ. As alternate angles becomes equal, and applying linear pair axiom on point Y and then By substitution you can prove sum of the measures of angles of triangle XYZ is 180°.