Page 18 - Math Grade 11 (Advance)

PROEUS DARA

n I 11 I
G&mg n?:2 tROl8 b =bi+I,.ek=bi+I,.(2k+1)
11
k I k I
n-I
"\' 1 2
= 1+2"'-'k(n-1) = n+2· (n-1)n = n
2
k=I
2
8tmg n = 1 , bi = 1 ~n., ~msg b = n .,
11
n-1 11-1
Gtmg n?:2 tR(ll8 a = a + I,.bk = I+ I,.k = 1 +~(2n-l)(n-l)n
2
11 1
k =! k =I

0 ~
tHmg n = 1 , a = 1 i:ln
1
1
a"= 6(2n-1)(n-l)n+1 '1

0
1 0
\;)
oQ1
Ql
rutmntu n. nruln~9 n t8~n 4, 18, 48, 100, 180, 294, ... '1
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u
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0 I QJ ':1 oC:»
n. nruln~9 n t8~n 4, 18, 48, 100, 180, 294, ...
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C» ':1 Ql t:J ~
fflb a 11 dl~g n t8~nn:ii1HR~ (a 11 )
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oC:» Q) 0 I ':IQI eJ \;)Q~O 1
~n (b 11 ) dlon.Hub~nruf:tl'li 1 t8~n (a 11 ) t[;jrulfls~ b" t8~nnrulntf:tlru
...
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b/1 = an+! -all '1 ~n (h ) : 14, 30, 52, so, 114, ... '1
11
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Ql
0
Q1
(ell) mo rutub nmruf:tlu 1 &s n.Jn (b, ) f[;jrulfls~ ell dl~g n ~S~n
\;)
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& & 1
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tRt:ll8 ~n (e ) : 16, 22, 28, 34, .. . '1
11
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