Page 153 - Math Grade 11 (Basic)

PROEUS DARA

tUx tit1JliL'i:Hlirl x 1 = 1 sit &94 x 2 =a sit &Sl&&f:lQI2HLffilitL'i:j'i5'iJbli'i:jUJ'i:j
w w
2
2
l'lP _ P(x2)- P(xl) _ P(a)- P(l) _ (a + 20a + 8000)- (1 + 20 x 1 + 8000)
l'lx - x - x - a- 1 - a- 1
2 1
=(a-l)(a+1)+20(a 1)=a+ l
2
a-1
~um~&sit l'lx nHitfi~G ( ~ l'lx_,O) &SlgHLmlitL'i:jti~rn'i:jtsJ'i:j ~ 2rinfifit1Z
~ ru t' tJ rn ttni th Hlflti tL'i:jtiL'i:j rn 2 n.n: ttfl ru fi n.n ci ~ tll ru
w
lim AP = limP(a)-P(l) = lim(a+21) = 22 <J
fu:--;.0 a-•l a-1 a->1
llP ~':I er •
e1
Hlflli&L'i:jti1Jbl52rul: lim A .. = 22 ~tnithn:jHJ&2H9f:l'i:j2 P(x) Lfi~ x = 1
w Ax --;> 0 L.lA
"" 0 •
t'i..fl t15n rul fi MH M~ P'( 1) = 22 <J

0 • 0
ruuniHH
II
3
an f( 1) = 1 = 1
..... f(l+h) f(l)
dn h
3 3
f(l+h)-f(l)- (l+h) -1
h - h
2
- (l+h-l)[(l+h) +(l+h)+l]
- h
2
= (l+h) +h+2
duns93 ~n limf(l+h)-f(l) = lim[(l+h) +h+2]
2
h->0 h h-->0
2
=(1+0)+0+2=3

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