midspan deflection

Problem 609
As shown in Fig. P-609, a simply supported beam carries two symmetrically placed concentrated loads. Compute the maximum deflection δ.
 

Problem 606
Determine the maximum deflection δ in a simply supported beam of length L carrying a uniformly distributed load of intensity w_o applied over its entire length.
 

Problem 605
Determine the maximum deflection δ in a simply supported beam of length L carrying a concentrated load P at midspan.