Page 114 - Math Grade 11 (Advance)
P. 114
PROEUS DARA
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4
2
Hifit~ m tJ.;J'i§J~Jhl'i:Hfl~ x -4x = m-3
n. 'i:flSYhl~~HdJ~~ '1
2. 'i:flsytunHdJ~~tsitLnim~g [-2, 2] '1
2.
2.1 ustnsti:ilttthrn :i nrnmtfitijti9ff
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tHnmm~hl'i§fil~ x +x+2>0 t ~ • 0
3
~dlnmmg x>-1 '1
~ ~ ~
Q I cl 3
t'(YLQlhl~Hjt:l'i§S y = x +x+2
2
y' = 3x + l > 0 , y" = 6x , y" = 0 , x = 0
+OO
floo +
-00
x=O ,y=2
3
y=O, x +x+2=0
2
~ (x+l)(x -x+2) = 0, x = -1
m13LfilliUJlit3nrp; (x, y) ct~ru'i:fls y>O
ttfl 1151J11 ~ S ~ X > -1 '1
u
3 0
tt:lQlS y = x +x+2>0 1'Hffi8 X>-1 '1
t~msg 1tu'i§m~ i+x+2>0 tdl~mfiucmg x>-1 '1
u 4J ~
~'7 ,.. """"' <..14 " cf 3 "" ""
UttJ t111 2 : 'Lli g hl t w 1 ~H o un n t s ~ ~ t:l'i§ s y = x + x + 2 t n s t rn IR '1
3
tt:l'i:flS: y(-1) = (-1) +(-1)+2 = 0
x>-1, y(x)>y(-1)
y(x) > 0
109
