As presented in sec 5.4 bending of a cantilever of narrow section, one form of plane-stress elasticity solutions for the displacements of a cantilever beam of rectangular cross section b×2k and length l, loaded at the end by a horizontal force p, a vertical force vo and a bending moment mo as well as undergone a temperature change of t is ea 6ei ea 6ei 2ei 2 where a = 2bh . 1: --bh3. e. vand α are the cross-sectional area, moment of inertia of the cross section about the n. a., young's modulus, poisson's ratio and linear coefficient of thermal expansion, respectively a. pl-gpi-ε conversion. convert the pl-o displacement field into the ple case b. stresses. without detailed derivations. 1ntuitively justify 1f the elasticity stress solutions for pl-σ and pl_ε cases are the same. why or why not note: symbolic math software may be to simplify/deduce the algebraic expressions in part a. if you use symbolic math, be sure to include the program codes and results in your submission