Page 240 - Math Grade 12 (Basic)

PROEUS DARA

2
:J. y = f(x) = 3x 7x+l5 = 3 x 4 + ll
X 1 X-
2
limf(x) = lim3x -7x+ 15 = co
x-1 x-1 X

2x- 1
2x l
?J. y = j (X ) = -;::---- = .,...-------.,.
-?x+lO (x-2)(x-5)
. /( ) . 2x- 1 = lim 2x 1 = oo
1
l1m x=lm =oo lim
x-2 x-z(x-2)(x-5) x- s(x- 2)(x- 5)

2 !
2 1
lim x - = lim x = 0
x-oox2-7x+l0 X---"'"'x-7+-
X

2
_ x + 3x + 3 . l
n. y = f(x) = = x + l + --
x+2 x+2
" tf::HH'irul~ : D = R- { -2}

" 9nHtliHGUlltl
2
4
- ttf1tlStH1hH.U'Hl f'(x) = x + x + 3 , f'(x) = 0 N"'i:H:Hli x = -3 , x = -1
N x+ u
f(-3) = -3 , f(-1) = I

2
3
3
<'
""'
lim f(x) = lim x + x + = 00 HS?li:Hl y = f(x) 'HlSffiMi:HHHliH x = -2
X--> -2 X-> -2 X + I I 1J
lim (f(x)- (x +I)] = lim (_!_) = 0 HS?l't§S'HlSffihli:HHHHH'l y = x +
x-+co X-ll>ooX+ 2 1 i U l,j

0 •
M rul i1 L filti
tti x = o , y = ~ Lfnti'HlS13niJuTiiM~~r'iJ ( o, ~)

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