What is the value of $Cot 60^{0} - Sec 45^{0}$ ?
1). $\frac{\left(\sqrt{2}-\sqrt{3}\right)}{\sqrt{6}}$
2). $\frac{\left(\sqrt{3}-3\sqrt{2}\right)}{3}$
3). $\frac{(1 -2 \sqrt{2})}{2}$
4). $\frac{(1 - \sqrt{3})}{2}$
2. What is the value of \(\frac{{cos\;40^\circ - cos\;140^\circ }}{{sin\;80^\circ + sin\;20^\circ }}?\)
6. Find the minimum value of (asec2 θ + bcosec2 θ).
7. What is the value of (1/2 - sec30o)?
8. If $7sin^{2}\theta + 3cos^{2}\theta$ = 4, then the value of $tan\theta$ is ($\theta$ is acute)