Question

                                    помогите пожалуйста даю 80 баллов))​

Answer 1

$\displaystyle\bf\\300^\circ=\frac{\pi }{180^\circ} \cdot3 00^\circ=\frac{5\pi }{3}\\\\\\-105^\circ=\frac{\pi }{180^\circ} \cdot(-105)^\circ=-\frac{7\pi }{12} \\\\\\320^\circ=\frac{\pi }{180^\circ} \cdot3 20^\circ=\frac{16\pi }{9} \\\\\\\frac{5\pi }{6}=\frac{5\cdot180^\circ }{6} =150^\circ\\\\\\\frac{13\pi }{15}=\frac{13\cdot180^\circ }{15} =156^\circ\\\\\\\frac{9\pi }{4}=\frac{9\cdot180^\circ }{4} =405^\circ$