h, # =, ", r 3. sorvc: i*t 4. sorve: **(- *)-"', (D = 0, r = rp at r = R, H,= I are the arbitrary constrnts. Giventhe boundary conditions: r=;I o(t - r(;)) =0. Show that the general solution to this equation is y = and (ii) #)= sinh(ar) , qg{ (Hint assumer, =1, *=O* * =0,*= *solve p$- * r dfr(fl)' where for a) flarr =1, showthat