Respuesta :

XxitzmeyanyanxX

[tex] \: \: \: \: \: [/tex]

[tex] = \cos(1) \cos(43°) \\ \\ in \: \: alternate \: \: form \: \\ \\ = 0.395152[/tex]

Step-by-step explanation:

[tex] \cos( - 1) ( \cos(43°)) [/tex]

  • simplify the expression usiNg the symmetry of trigonometry

[tex]= \cos(1) \cos(43°) \\ \\ \\ or \: \: in \: \: alternate \: \: form \\ \\ = 0.395152[/tex]

hope it helps

loneguy

[tex]\cos^{-1}(\cos 43^{\circ})=43^{\circ}\\\\\\\text{In radians,}~~ \dfrac{43\pi}{180}[/tex]

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