Mathematics

Problem

For an acute angle

\theta

\tan\theta = \dfrac{2}{3}

. What is the value of

\sec\theta - \csc\theta

? a)

\dfrac{\sqrt{13}}{6}

\dfrac{5\sqrt{13}}{6}

-\dfrac{\sqrt{13}}{6}

-\dfrac{\sqrt{13}}{5}