please answer using castiglianos method if not then I will unlike, if you do i will like.

Possible answers: $(6$ P I$^3)/(25$ EI$)+(13$ P I$)/(2$ E A$),(6$ P I$^3)/(5$ E I$)+(3$ PI$)/(2$EA$),(11$ PI$^2)/(13$EI$),(11$P I$^2)/($EI$),(5$ P I$^3)/(3$EI$)+($PI$/$EA$),(11$PI$^3)/(5$EI$)+(3$PI$)/(2$EA$),(26$PI$^3)/(5$EI$)+($PI$)/(2$EA$),(13$PI$^3)/(5$EI$)+(25$PI$)/($EA$),($PI$^3)/$EI$,($PI$^3)/(11$EI$),(32$PI$^3)/(11$EI$),(3$PI$^2)/($EI$),(5$PI$^2)/(3$EI$)$

A uniform rod of flexural rigidity El is loaded as shown below. Given: $\backslash (\backslash$mathrm$\{$P$\},\backslash$mathrm$\{$E$\},\backslash$mathrm$\{$I$\}\backslash ),$ crosssectional area A$,$ Young's modulus E$,$ and length $\backslash ($ l $\backslash ).$ Neglect any contributions due to transverse shear and determine the following using Castigliano's method:

a$)$ the vertical deflection at point D$,$

b$)$ the horizontal deflection at point $\backslash ($ D $\backslash ),$

c$)$ the slope$/$rotation at point C$.$

a$)$

b$)$

c$)$