Page 241 - Math Grade 12 (Basic)

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4. n. y = f(x) = 2x +x+l = 2x-1+-2-
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- t1::11t~ f'(x) = x + ~ j'(x) = 0 fd'i:31Hli X = -2 , X = 0
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(x + 1) II
f(-2) = -7 , f(O) = 1

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lim f(x) = lim x + x + 1 =oo ~S?l'i:§S y = f(x) 'i:f1SffiN'i:3fHHli.U x = -1
X->-l X->-1 X+ I I IJ
lim [!(x)- (2x-l)] = lim (_2_) = 0
X->-00 X-ii>OO X+ 1
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:;l. fflb t = lcosxl E[O, 1] otm8Ultl X '1

ffli:3LfllU MaxA = f(l) = 2 , MinA = f(O) = I '1

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