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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