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the minimum value of y = xx ]
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Eq'R3"t )e3 _f (*)= et + Zcosx + e-^ rfls.lrd1-1 Efr$:flr
[Examine the function f (*)=e. +2cosx+ e-., for
val ues]
sm !r{ r
10. Frflfw E:1'nn " Ce"e
)= 2xr -9xr + 12 -3 qti-RF< .{fr8qtq e<( FTFi6TFT fi.ftr oa"r
[Find the maximum and minimum values of the function
ofthefunction f(x)=xi-5xt+5x3-ll,,,'r ffi5pve
x)=5xt' +18x5 +l5x{ -1g q{irllFcqs qfrrTn e<( qfurh{rd
rtER iF-( r I Investigate for what values " of x,
+18x5 +l5xa *l0has the maxi
s.I
r(*): 2x3 - 9xr +tz-31 ufr )tqs,us
,
Nfrfu rrt(,H8<
'fR6flq, .qr( qfrt$q wi-Elutl ,, iEiro
{ ft)= x't - 5x{ + 5x
j
- I [Discuss the maximum arrci nrinimum
,' .. r ]
fl<.RE<
e< r I Discuss the maximurn and mini
function f(x)= x-' -3x' + 3x + I I
,i,;i J:
'.:,!:d..:ri:
+5 ,{l
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qnq r I Plpve that .l'(.r)=sin.u(l+cos,r.)' haS, a maximunt, r
'rrltrc
lor.
^
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ffirya'i'*u,
cr f (x)= x3 -6xr il2x -3 e< ,ffr&{1q TfFrqfle
'/*,
t Show that f(x)=*l-o*'i ii-t
maximum nor a minimuml
,/7
>>/m,t;rs c< f (x )= x3 - 3x
3
+ 6x
,/
' nR [Show rhar f(x)= x:
maximum nor a minimum value]
