464 

 For w=l, 



Prof. D. N. Malhk on Magnetic 



It 



where 



and 



Similarly, 



2 JS v^=r*-Q.^^r-Jtjfc 



, If 1 . (r + l) , 



r 2»i— 2 "1 



(2n - l)A»=2k_2+ t^ r d p2H ■-• + 'J 

 (l-a; ! )" l =l+ya.e'+^4*' + - • . 



s 1 iLlog^i] + 1 |"( 2b _i) J,., + ... + ...1 



["and 2 rQ v / ^=I^=2 */^T-2 foo^-I dr 



_2 f— ik=,rfr + ^"^1.100-^1. 



+ ^ny ( ^ rr) {(2»-3) 1 i»- 2 +-+-] 



= "-^j bX» (say). 



