$$(Sec\theta+\tan(\theta)(Sec\theta-\tan(\theta)$$
$\frac{\sin(\theta )+\cos(\theta )-1}{\left(\cos(\theta )\right)^{2}}+1$
$$\frac{1+\sin(\theta )\left(\frac{1}{\cos(\theta )}-\tan(\theta )\right)}{\cos(\theta )}$$
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$\frac{\left(\cos(\theta )\right)^{2}+\sin(\theta )+\cos(\theta )-1}{\left(\cos(\theta )\right)^{2}}$
