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Let z = sin(x).
.. z^2 -2z = 2
.. z^2 -2z +1 = 3
.. (z -1)² = 3
.. z -1 = ±√3
.. z = 1 -√3 . . . . . the positive solution is extraneous
sin(x) = 1 -√3
B.59
Explanation: the interior angles of a triangle equal 180.
This is what my calculator says
Answer:
ABD
Step-by-step explanation:
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