nomor 1
[tex]cos \: A = \frac{sa}{mi} \\ \boxed{ cos \: A = \frac{AB}{ AC} }[/tex]
nomor 2
[tex] \tan \: X = \frac{YZ}{XY} \\ \tan \: X = \frac{3}{ \sqrt{ {5}^{2} - 3 {}^{2} } } \\ \boxed{ \tan \: X = \frac{3}{4} }[/tex]
nomor 3
[tex] \sin A = \frac{BC}{AC} \\ \sin A = \frac{8}{10} \\ \boxed{ \sin \: A = \frac{4}{5} }[/tex]
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Verified answer
nomor 1
[tex]cos \: A = \frac{sa}{mi} \\ \boxed{ cos \: A = \frac{AB}{ AC} }[/tex]
nomor 2
[tex] \tan \: X = \frac{YZ}{XY} \\ \tan \: X = \frac{3}{ \sqrt{ {5}^{2} - 3 {}^{2} } } \\ \boxed{ \tan \: X = \frac{3}{4} }[/tex]
nomor 3
[tex] \sin A = \frac{BC}{AC} \\ \sin A = \frac{8}{10} \\ \boxed{ \sin \: A = \frac{4}{5} }[/tex]