h
h~0
= 1
f(x) = lim =Um =lim hhL =Hm Mlii =lim (/,+ ])
/z-0
/z- 0
/z- 0
/z- 0
/z- 0
g(*) = —
g' (x) -lim
b*0
JC+1
+3
h-2-l _
h
=lim ^1+3
/z-0
h
=lim
b*0
3-3/?-3 h-1
=lim 3,\ =lim (-4r)
h(h—1) v h-1 7
/z-0 /z-0
c) /?(x) = cosjc dla jco = f-
cos(/z+4)-cos + cos4 cos/z-sin + sin/z-cos + cos4(cos/z-l)-sin+sin/z
g'(x) =lim -=r-— =lim —---— =lim
/z-0
/z
/z-0
h
=lim
b*0
cos-j- (cos /z-1) sin-j sin/z
h
, =lim cos -f- (cos," 1} - sin -f- =lim cos -f- (cos," 1} - sin -f- • 1
h 4/z 4/z 4/z 4
/z^-0 /z^-0
=lim cos -f-(cos," 1)(co*'i+1) _ sin jl =Hm cos -f- .^os~'.: * - sin -f- =lim cos -f- . sm~':.. - sin -f-
4 /z(cos/z+l) 4 4 /z(cos/z+l) 4 4 /z(cos/z+l) 4
/z*-»-0 h'-* 0 /z*-»-0
72
72
-lim cos f 4™- - sin f -lim cos f ^4 -sinf=4-.T4-4+ = ,
d) //(z) = z3 i-1 dla zo = 3
/»(x) -lim (3+;o;;1-:s -lim (3+;o(9-f;::)-r -lim
/z*-»-0 h'-* 0 /z*-»-0
=lim +9fi+- ) =j-m + 9/?i_ 27) = 27
=lim
/z-0
/z3+9/z2+27/z _ h
/z- 0
/z-0
=lim
/!-0
=lim —4=— “lim : —
h(j2h+4+2) (72^4+2)