290 



Let /(..)=ƒ./(/?) 7, (.i'-/?)t/ii 



ttieii 







Multiplying these equations respectively by 1 and 4, and adding 

 we find 



X 



= -^(p {^.V) i- 4 I 7 [^) 

 



thus 







Now, according to (5) 



X 



c//?. 







or, with the values of b from (9) 



+ U''.^4 +C,i, +C,/, -f ••] 



which by means of (5) may be written 



z 







Therefore the solution may be put in this form 



X 



2(f{.v) - [2^ p){x)\ - 3 [ƒ(..)] = - 2j/(/3) ^^^ d^ • (10) 







II. p = 2. 

 Differentiating 



