△1=0 X2△,=0 01X1+12:X2+△p=0 EI O21·X1+O2AX2+△2p=0 X,=9ql/20,X,=3ql/40 XI A,=0 20 6,·X,+δ,X+△ IP 0 ql2/40 6n,·X1+δ,·X,+△=0 X1=-3yl/20,X2=-2140 X 001x1+O2X2+△p=0 X 1△2=012X+62X2+△P=0 x1=q2/20,X2=-9240q l l EI 2EI q X1 X2 1 2 20 2 ql 40 2 ql / M 0  11  X1 + 12  X2 +1P = 0  21  X1 + 22  X2 +2P = 9 20 3 40 1 2 X = ql / , X = ql /     =  = 0 0 2 1 q X1 X2 20 40 2 2 2 1 X = ql / , X = −ql / 0  11  X1 + 12  X2 +1P = 0  21  X1 + 22  X2 +2P =     =  = 0 0 2 1 X1 X2 3 20 40 2 1 2 X = − ql / , X = −ql / 0  11  X1 + 12  X2 +1P = 0  21  X1 + 22  X2 +2P =     =  = 0 0 2 1