Solución

a.   x=23x=−\frac{\sqrt{2}}{3}
b.   sinθ=73\sin \theta=\frac{\sqrt{7}}{3}, cosθ=23cos \theta=-\frac{\sqrt{2}}{3}, tanθ=142tan \theta=−\frac{\sqrt{14}}{2}, cscθ=377csc \theta=\frac{3\sqrt{7}}{7}, secθ=322sec \theta=−\frac{3\sqrt{2}}{2}, cotθ=147cot\theta=-\frac{\sqrt{14}}{7}