Problems by Bapu Deva Shastri. 1. Jee 
5B*n* 7ACn? 21ABCn! 
or. + &e. +4, (Pe &c. 
ae 4 
mee foley 
dal athe 2(5B?-13ABC+3A:D)n$ 
eS re ae Ae + &e. 
n Bn? (2B?—AGC)n? (5B*—5ABC-+A2D)n4 
aaa xy : 73 ) 4! = a 
1 1 
9 B= 25.2.1 = Le °=377374.6.6.7 P-o3.4.6.6.7.8.9 
oan by subtrn., a? =24n+ ent tape ae n* +- &c. (1) 
6 129 52 
=6n(4+ n+a5 50" +7757" + &c.) 
| And Sagitta of a=3n — en? ae Fn ta +79" + &c. 
And by extr. the sq. root of (1) a= Soul tea? 2 soagn the) i 
Now @ ; sagitta of a::A: sagitta of A 
; Axsagitta of a 
-". Sagitta of 4= 
3 33 
oe. ot Ts" bent + ke. 
>. 
Vv 6n 
aos ta" soli 
1 el 
og Sh 
eae ee! a 10” ~a80 ess 
2+ sort ien eu ta 
es 
ES) get. ASE 
a= A coat te ee AE #3 
Y6( 4-30" —aaa00"" + as000"" 7 SS 
Example. Er ipl a : to find the sagitta. 
A=9: Boe, and :’. n=6 
