Page 166 - Math Grade 12 (Basic)

PROEUS DARA

n
y(a) = ~[(y 1 b)- =
;= I
n 11
y'(a) = -2~[(y;-b)x;]+2a'L
i =I i =I

= 0

i I

y = ! d; tfl~Hit~HUJtH'i:flfilblHlfll

i =I
n n
2 ~ [(Y;- b )xJ + 2a +b ~X;= (2)
i= I ; =I i= I

n n
a~ X;+ nb = ~ Y; ( )
i =I i= I
n n n
a~ x7 + b ~X; = ~ X;Y; (2)
i =I i =I i = 1

n Y;
n
(l)x ~x;+(2)x(-n) sn2JtR(fl2 a=---'--=--'----.:...::_:_~'-'-
; = 1

11
ffl't§ (1) tR(flS b = - j ( "\' Y; a
nL;
i I

.,. 1 ( n n )
Silb=~~Y;-a~x; '1
i= l i= I

tROl215Slci y = ax+b fE:Jn.H;5msi~~tld~rhRtinMtsg2Sli5 ttnitn
4 c-. i l.j 1 c;;
nT_;uddltsfii ttiiru9S1~9sb y = ax+b ~:tnim MIJmtnfL11fi'[.;'t11Jdltsfii'1