Вычислите \((\frac{tg45^{\circ}}{sin^2{60^{\circ}}}+1)\cdot{cos135^{\circ}}.\)

• \(-\frac{7\sqrt2}{6}\)
• \(-\frac{7}{3}\)
• \(-\frac{14}{6}\)
• \(-\frac{\sqrt2}{6}\)