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Athena Reynolds
Mathematics
17 June, 18:33
2cos2ysin2y
simplify
+1
Answers (
1
)
Blankenship
17 June, 18:52
0
Reorder 2 cos (2y) and sin (2y)
= sin (2y) (2 cos (2y))
Remove parenthesis
= sin (2y) * 2 cos (2y)
Reorder sin (2y) and 2
= 2 * sin (2y) cos (2y)
Apply the sine double-angle identity
= sin (2 (2y))
Now multiply 2 by 2
= sin (4y)
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