![cos(\alpha - \beta)= cos(\alpha)cos(\beta) + sin(\alpha)sin(\beta) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ cos(180-x)=-cos(x) \\\\[-0.35em] ~\dotfill\\\\ cos(180^o-x)\implies cos(180^o)cos(x)+sin(180^o)sin(x) \\\\\\ (-1)cos(x)+(0)sin(x)\implies -cos(x)](/tpl/images/2648/9562/1f54f.png)
cos (180 - x) = - cos x
Show Work plzzz!!!
Mathematics, 07.02.2022 03:40 jcutler2751
Verify the equation is an identity
cos (180 - x) = - cos x
Show Work plzzz!!!
Answers: 3
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Verify the equation is an identity
cos (180 - x) = - cos x
Show Work plzzz!!!
cos (180 - x) = - cos x
Show Work plzzz!!!
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