Page 143 - Math Grade 12 (Basic)

PROEUS DARA

Jt Jt Jt
sm -
d
[
.
:rt
A = xcosxdx = [xsinx]~ smx x = Jt . :rt 0 + cosx ] 2 = :z:+ 0 =:: :!: -1
2 2 0 2
Jt
i::ltHS& A= ~xcosxdx = :!:_1 '1
u JO 2

ffib f(x) = x , f'(x) =

= ex ' g'(x) =

B = t x xitx xl
xe dx = [xe ] -
e dx = e- 0- [xe ] = e e + 1
()
0
0
0
.
.

Jt
n. A= foxixdx 2. B = /o xsinxdx ?1. C = [t xf.nxdx '1

d
5, H~@S~e

- f 1 0 (!) ':) 0 cJ I
~m:n.n s runatl rus'i:Hll9 g ru1mnm n.n m ffi13'tH'i13ti113rutsus sao rus n~ rums run '1
G 1 111.1 u L:i -...:> L:i L:i u 11
1 1.1
,o eJ 0 • ct eJ 0 .:::.,
H'iffi'i01nmn.nmtitS13nfl.flflttnruHs?l13S P(x) = 30-0.28x ttlru x dluss~tlrus sb
U L:i -...:> "' I 1.1 £1
~flmftustDru '1 ~ntit'l,'!3U1Jmtst.rnr1thn.n(QrifflH15rtaoru~murin~s 10 wi 3o
u
'1

otgm : uf1Jut.l:mtst.rnfintn.nQJ'rin1:imr\-~oru~mtirin~s 10 t913o 'Ui]b

0 0 t ~ f:l 1 0 eJ
Hlu?lfl.fl21 ffi13ffib tfl'ifflmn n.n msHS?l'!§ S'iQlntH n.n mut~:m P(x) = 30- 0.28x
l.j n l_j ........,~
rJ 10 tfll 30 t?lQlS
2 30
fO P(x)dx = fO (30- 0.28x)dx = [30x 0.2 x J
8
J 10 J 10 2 10
2 2
28 10
0 28 30 ) ( 30 . 10 ° ~
~
= ( 30 . 30 - ) =:: 48
~ms& uf1Jut.l:mtst.rni'h3tn.nQJrimamr1a13ru~murio~s w t913o 'L?l]b?i 488
( ~flm ftusau m) ~ 488oo ooo cum '1

138