Isolate the identity
cos 2x - cos 8x
cos 2x + cos 8x
HELP PLS
...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 06.03.2020 09:55, 24jgrove
Isolate the identity
cos 2x - cos 8x
cos 2x + cos 8x
HELP PLS
![answer](/tpl/images/cats/otvet.png)
Answers: 3
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