Page 15 - Math Grade 12 (Advance)

PROEUS DARA

"" 1 2 3
Iar"- = a+ar+ar +ar + ... ft::lru'i:lls~'9ljti5 a:tO SiH~ruwJu~~ r '1
n =I

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t~'i:ll2tt'd"'h~s~ Iar 11
n =I
~ n-1
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- m a= 0 cs·ut~Ql2 £..Jar = 0
n =I
Q v ~ ~ ~ ~
- ma:tO tSlZt~Ql2 S dldtli1JfHtilti5t~li9n t2tnHUHl.fl'i:llUHSlZ
11
11
- "" 2 n-1 a(l-r )
nHl..fl r:;t:O t~Ql2 S = a+ar+ar + ... +ar = l
-r
11
ttllrl<l tSlgt~Ql2 lim r"=O t'i..liru lim S = lim a(l-rn)=_a_
n-7+oo n~+"" 11 n~+oo l-r l-r

- tU
"" r = 1 tSlgt~Ql2 S = a+a+ ... +a= na
11
S = na S~ a :tO tUlti5~n (S ) 1n '1
11 11
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2
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1JiU&n5~UHUl'Hl1.rH2~ a+ar+ar +ar + ... +ar Il-l + ... twru(a:;t:O) w1thl~J~
u1nt9iffl~nH11lt::in~~t'ifil~:
"' u li

111
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.....
(IJf.mtifi/1: tnthlWHl..fl'i:ll1.rH2~ 1- + - + ... dlthl~~~~~li?
3 9 27
otft!J : ttilti5~'9ljti5~ 1 s~drutuJUJ~ r = -~ Clrl <I) &Slgtt'61U~M'i:lli.rH2~
r:htt'61~~ '1 t~Qlsdruun s = 1 = ~ '1
u u 1-(-D 4

10