Question

Find the value of sec$\theta$-tan$\theta$ if

sec$\theta$+tan$\theta$=5 ,

Answer 1

We know that sec${}^2\theta$-tan${}^2\theta$=1

$\to$ $(sec\theta -tan\theta )\left(5\right)=1$

So, $Sec\theta -tan\theta =\frac{1}{5}$