\(A=\left ( -\infty ;-\frac{8}{3} \right )\cup \left ( \frac{8}{3};+\infty \right )- \left \{ 0 \right \}\)

\(A=\left ( -\infty ;0 \right )\cup \left ( \frac{8}{3};+\infty \right )\cup \left \{ 0 \right \}\)

\(A=\left ( -\infty ;-\frac{8}{3} \right )\cup \left ( \frac{8}{3};+\infty \right )\cup \left \{ 0 \right \}\)

\(A=\left \{ 0 \right \}\)

\(x \epsilon \left [18;+\infty\right ), D=(\frac{2}{3}\pi; \frac{7}{3}\pi)-\left \{ \pi \right \}\)

\(x \epsilon \left [18;+\infty\right ), D=(\frac{2}{3}\pi; \frac{4}{3}\pi)\)

\(x \epsilon \left [18;+\infty\right ), D=(\frac{2}{3}\pi; \frac{4}{3}\pi)-\left \{ \pi \right \}\)

\(x \epsilon \left [-18;+\infty\right ), D=(\frac{2}{3}\pi; \frac{4}{3}\pi)-\left \{ \pi \right \}\)

\({P}_t\cong 72,01\)

\({P}_t\cong 140,78\)

\({P}_t\cong 136,04\)

\({P}_t\cong 97\)

\(I=\left [ -81;+\infty \right ), \bar{{r}_A}(3s)=(113,5;121)m , \bar{{r}_B}(3s)=(127;113,5)m , \left \| {\Delta r}_{BA} \right \|=19,09m\)

\(I=\left [ -81;+\infty \right ), \bar{{r}_A}(3s)=(113,5;127)m , \bar{{r}_B}(3s)=(127;113,5)m , \left \| {\Delta r}_{BA} \right \|=0m\)

\(I=\left [ -81;+\infty \right ), \bar{{r}_A}(3s)=(113,5;127)m , \bar{{r}_B}(3s)=(109;113,5)m , \left \| {\Delta r}_{BA} \right \|=19,09m\)

\(I=\left [ -81;+\infty \right ), \bar{{r}_A}(3s)=(113,5;127)m , \bar{{r}_B}(3s)=(127;113,5)m , \left \| {\Delta r}_{BA} \right \|=19,09m\)

\(\alpha = 63^{\circ} {44}'', \bar{c}=(6.5,4.5), \bar{{F}_a}=(0,0)N,\bar{{F}_b}=(-200,0)N\)

\(\alpha = 63^{\circ} {44}'', \bar{c}=(6.5,4.5), \bar{{F}_a}=(500,-500)N,\bar{{F}_b}=(-200,0)N\)

\(\alpha = 63^{\circ} {44}'', \bar{c}=(6.5,4.5), \bar{{F}_a}=(500,-500)N,\bar{{F}_b}=(-200,200)N\)

\(\alpha = 44^{\circ} {02}'', \bar{c}=(6.5,4.5), \bar{{F}_a}=(500,-500)N,\bar{{F}_b}=(-200,0)N\)