Thus,
and
Substituting for (ux) from equation (22),
or
Integrating from x = 0 to x = x and (Pi) to (Px),
Now when x = L, then Px = Po . Thus,
Thus,
and
Substituting for (ux) from equation (22),
or
Integrating from x = 0 to x = x and (Pi) to (Px),
Now when x = L, then Px = Po . Thus,