5
Let cos x =
with x in QIV and find the following.
cos 2x...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 29.11.2021 07:40, dookiefadep5n1tt
5
Let cos x =
with x in QIV and find the following.
cos 2x
![answer](/tpl/images/cats/otvet.png)
Answers: 2
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