Page 68 - Math Grade 11 (Advance)

PROEUS DARA

0 ' 0
ruunntu 2
u

mh cosx = t ~tau -1 s t s 1 '1
2 2 2 2
&?iQlS t +mt+ 1-m = 0 '1 fflh f(t) = +mt+ 1-m
t
n.r1§ffU'i:flS'iHu'i:H15trnmsu [-I, 1] mrnrun f(-I)xf(l)so '1
"' \J 6V
2 2
(2-m-m )(2+m-m )sO
2 2
(m +m-2)(m -m-2)s0, -2sms-l y 1sms2 (1)

2 2
~;::0 m -4(1-m ) ;:: 0 2 2
ms- -sm
'
2
/(-1)>0 -m -m+2 >0 J5 J5
f( 1) > 0 -m+m+2>0 -2 < m < 1
-1 < m < 2
-1 < ~ < 1 -1<-~<1
2 -2 <m <2
2
2J5
-1 < m s- (2)
5

63