Page 26 - Math Grade 11 (Advance)

PROEUS DARA

0 I 0
rnun ~Hu ~f) (a 11 ) Firul~&i::JlliJ al = 1 , az = 13 , an+2 = an+1+6a 11
u
I
0 I Ql \;) Ql
(n =I, 2 ... ) '1 nrulfl~9 n i:Sf151 '1
1
0 I QJ ':) Ql
nrulfl~9 n I:Sf1ri (a )
11
1
all+2 = all+l + 6an ~ a,+2 -an+l- 6a, = 0
C» 0 • • 2 C»
t'U13f11HtHflbli . x -x-6 = 0 tS"Hytutu13f11~ X= 3 u_ x = -2 £R(f18

a,+z+2an+l ~ 3(an+I +2a") (i)
{ (ii)
1
all+ 2 - 3a + 1 - -2(a + - 3a 11 )
11 11
(i) an+z+2an+l = 3(all+ 1 +2a,J

mtl b " = all+ l +2 an tSlot'd- (b) r:hMflmo.fhnunrl:jru'i:flsorum'"~m13tt'dsb 3
U u
n
....
4 61
61
o
ll
1 1
Ql C» c:::il c::. 1
I:Ulli5~9 1 R bl = az+2a1 = 13 +2X l = 15 2t\ b = 15 · (3)"-
11
ll 1
i:Rti12 an+ +2a = 15·(3) (1)
1
11
Il-l
i:Rti18 all+ 1 - 3a" = 10 · (-2) (2) '1

m13 o) stJ (2) tRms

an+ I +2a = 15 · (3)"-l (I)
11
{
an+ l- 3an = 10. (-2)" l (2)

n-1 n-1 11
an= 3x3 - 2 x(-2) = 3"+(-2)
11
~msg ~9 n t2~fl (an) ~all= 3"+(-2)
I
QJ 0 I 0 I 0
f151 (a ) nrulntf:!lli598ln9Sti a = 0 , a 2 = 3 , alz+2 = 4an+ I- 3an
11 1
1
0 1 .Q1 ':;l .Ql
(n = l' 2, ... ) '1 nruln~9 n t2 f151 (all) '1
I
21