Dikerjain yang A dan C aja kak..tolong yahh

[tex] a) \: \sin( \alpha ) = \frac{3}{4} \\ \cos( \alpha ) = \sqrt{1 - {( \frac{3}{4})}^{2} } = \frac{ \sqrt{7} }{4} \\ \tan( \alpha ) = \frac{3}{7} \sqrt{7} \\ \csc( \alpha ) = \frac{4}{3} \\ \sec( \alpha ) = \frac{4}{7} \sqrt{7} \\ \cot( \alpha ) = \frac{ \sqrt{7} }{3} [/tex]
[tex]c) \: \sec( \beta ) = \frac{13}{12} \\ \cos( \beta ) = \frac{12}{13} \\ \sin( \beta ) = \sqrt{1 - {( \frac{12}{13}) }^{2} } = \frac{5}{13 }\\ \csc( \beta ) = \frac{13}{5} \\ \tan( \beta ) = \frac{5}{12} \\ \cot( \beta ) = \frac{12}{5} [/tex]