tashaila123
tashaila123
01-12-2021
Mathematics
contestada
If xcos(x)= 2, find (-x) • cos(-x)
Respuesta :
loneguy
loneguy
01-12-2021
[tex](-x) \cos(-x)\\\\=-x \cos x \\\\=-(x \cos x)\\\\=-2[/tex]
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