di ketahui cos alfa sama dengan p per 2 hitunglah sin alfa,tan alfa,sec alfa cosec alfa,dan cotan alfa,

[tex] \cos( \alpha ) = \frac{p}{2} \\ \sin( \alpha ) = \sqrt{1 - {cos}^{2} \alpha } = \sqrt{1 - {( \frac{p}{2} )}^{2} } = \sqrt{ \frac{4 - {p}^{2} }{4} } = \frac{ \sqrt{4 - {p}^{2} } }{2} [/tex]
[tex] \tan( \alpha ) = \frac{ \sqrt{4 - {p}^{2} } }{p} [/tex]
[tex] \sec( \alpha) = \frac{2}{p} [/tex]
[tex] \csc( \alpha ) = \frac{2}{ \sqrt{4 - {p}^{2} } } [/tex]
[tex] \cot( \alpha ) = \frac{p}{ \sqrt{4 - {p}^{2} } } [/tex]