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Lecture notes of 6 pages for the course 201-015-RE at (Sec v math)
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y Rahonl Expressin fiachals-DeL. A (otional expression Lo fraction of ARe (slan.
a
0a whel a + 6 ale peen sorials
†
.
Eg. Cahool
Va
Ox pleadica
344 + 5 X44
I Latinal Saplestiona at AR Dammil Lot con
get
onu (om die ather hi multi elus Pdividira
can amon, factol
0
AA Aunecdo Da nammarool-
6
A.C
B. C
10
20
N.6 Aten sumeli Cochional expression lay Canceling
We
da nominatef
O Comma factol (fleam, Auma latel
a Ned to l Lactold T
Simplify Mr 16 6 DIFF d T
yaux-6 - quad +6 0. m =-6 -51
-
IA NA
CIA) C*41)
16 04m--Y
Y+
Operations tol ratigrol (splexion, ole pre formed in a
Li mi lot do numulica locatA Liactiona
manne
Multiplitation: A C -A.0 multil numit AngeR 144
8 ó BD dan
N.B Usually unitary, Pullermig DeclationdWol Cot. explosions
Lector HARr at 10 Beginarnse
s
LuK Lue Sio simplifie
Ca He ma at tRu erd.
AL Muciply La aliana Endgelin lo
M
X+ L ARe Y fpetased.
L No need to
ALeAN(xtil
- yes
N+1
X
Multiply XL2 v2 Avil
diff (CA 2 M4 r %- 3
N+9 Lx+ll (x49 NEED' = (*42 (44)
(x-0) (x40)
X-3 (x-1) L,Al) (x-3) x-1) k-3)
, co)
Divisions 4
A A D A2
8
B D c BC
K- U 0x -(x-0 (x)
He lyex).
Lx-al
y-x
130-0 LX-9
Davids 16x 116
3(-1)
16-6x
,
3
(N-33
16 X+01
(X-3 13
LX-30
16-6 x
5 XL x22
LA. )L x1 3 - /A
=-2 Xill
(x+31
Addiction, Subtlachin: To add /oubtfast rational exacers
IT I Kau And b Ravel Com man denominadoL
uR add Mulanad the num eratols tor ether
then
Ad + BC
A+C
6 D
AD +
BD
BC
B B
Eg V
N
94-4 IX-2) x N- 2)(viLles
Lxx-2) 21% lx 9x (x-21) LxlyA4
N-0 Anita aC An feu
LuX
NB: Agu adding substachna AR. a factions into 1 faction,
Htupica.00N ned do factor He Crouching Cumerodor
Lon of cA nue
YA ada tho simples fuckers
Eg. X + L-Qx X + 4 4 0X
NELY (x-9) (xt 81 )
X-9 X-9
K x-9 + 4-X
(x-2) CXt3)
X043 14+ 2x)
(x-2) (1+9) Lx-2) Lx12)
d 2x 1449% 2+ 444 1 (x43) - X42
xX-8) LX1.2) (x-9) Lx+2) he Mispl x-a
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