161 Memorias da Academia Real 



(5(0 2*0- i)(o P(o)P - (C(0 2(0 - 2*0 Qo) <* ^ = o 

 (5(0 2)(0 - 2)(0 5(o)P - (C(.) 2)(0 - 2)(0 Qo) ^ ^ = o 

 (5(0 2*4)- 2)( B( 4 ))P - (C( D(0- 2*0 Qo) á P = o 



(5(02)(«-s) -D(o5(»-s))5-( C(oD(„- 5 )-2)(oC(n-o) ^=0 

 ( B(0 2)0-4) -2)(05C"-4))P-( C(o2>( fl -4)— DC0C(-4)) ^ = o 

 (5(0 2)(„-o -2)(o5(*-o)5-( Q>)-D(»-0 — P&)G>-o) áP = o 

 (5(0 2)' — AO ^JP^ttO 2> — 2)(o C')</P = o 

 ( B'(o D' — 2)'(o 5 )P— ( C'(o 2)' — 2)'(0 C')dP = o 

 (Z>"( 2)'(0-2)'(0^:)P-(^'(i>D'(O-í ) 'C0C"(o) <* P = o 

 (5'(o2)'(0--D'(oE'(o)P-(C'c)2)'(o-2)'(OC'(o) dP - o 

 (C'(02)'(4)-2)'(05'(4:)P-(^'(0C'C4)-2)'(0C , '(4:) d P = o 



(P'(OD'(-s>-í)'(OP'(-5))P-(C(00'C«-5)-í)'(OC'(r.- 5 ))^P=o 

 (B'O>D'0'-4)— D'(0fi'(«-4))P-(C'(0£ ) '(«-4)-i)'(0C'(n-4:)^P= o 



(S' (l ;2)'(n-,>-2)'(oB'(n-i))P-(Cxo2) , ( n - í )-2)'(oC'(«- J ))^=<» 



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