Pregunta: If tanα=−4/3​, 270°<α<360°​, then find the exact value of each of the following.

If $\tan \alpha =-\frac{4}{3},270^{\circ }<\alpha <360^{\circ }$, then find the exact value of each of the following. a. $\sin \frac{\alpha }{2}$ b. $\cos \frac{\alpha }{2}$ c. $\tan \frac{\alpha }{2}$ a. $\sin \frac{\alpha }{2}=$ (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression. Rationalize the denominator.)