The possible expressions for the measure of the smallest acute angle
[tex]sin\:\theta =\frac{3}{5}\:or\:\theta =sin^{-1}\left(\frac{3}{5}\right)[/tex]
[tex]cos\:\theta =\frac{4}{5}\:or\:\theta =cos^{-1}\left(\frac{4}{5}\right)[/tex]
[tex]tan\:\theta =\frac{3}{4}\:or\:\theta =tan^{-1}\left(\frac{3}{4}\right)[/tex]
These three expressions are the possible measure of the smallest acute angle.
