Page 242 - Math Grade 12 (Basic)
P. 242
PROEUS DARA
n. y = x-1-lnx
"
.. t~1t~ y' = l _l = ~
X X
n:JltlJ lim (lnx) = -CO bSlg Jim Y = +CO
b r:Jl tlJ lim Jn X = lim l = 0
x-)>+oo X
+co
0 I f C»t.:::it
9. Gssumnhlmmhl'i:3us~ A = p( + tt.lru P = woo
u 1 n
r = 11 % = 1 = 0.11
t = 60-30 = 30
30
t~Q12 A= 1000(1 +0.11)
= 22892
t:::). et 0 t:::J ~
t.lmsg &2itnruGrusJS1Sffiru 6o m 1:3UstSlg'tfls'iQ1nhlm 22892 elruu '1
U U "' I "' n J...j l I G\1
0 t:::» "? 0 C:i1
10. ~LmntMs taG~ sLtirtld snh 9Lni:'l
1 I
C» kt el 0 C» 0
tLli~'l51:3~ p(t) = p 0 e tt.lru Po t3~2Llirtldsmrun 20 ~~2
t aru:tnrun
"" t = 20
0
2
ffll:3hl'!:!~il'!:! 150000 = 60000ek( o) hll:31jru i 0 k = ~~~~ = 2.5
0
hl'l:mru 1ni k = ln2.5
u
2
hl'i:31jru k = ln~ 5 = 0.04581
~mag LlirtldsnhgLnhts:l'tflS~LmtfiswjhLli'tflM 4, ss%
l l
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