Joo,, do06 .
'ii
o€ ttri roAr c,ro CAp r fBd'z)
Thdi -eian iin bii:90 phrit
f6Ong ducc tharm khio tii li€u,
ln2
In Ciu l Tinh dao -;: him crfp n cria hi.rn sd iix r = -r-=. Ql- ,=_2*+l'J- /tl
CAu 3 Cho him f khi vi 3 ldn u€n khoing ia,b) vi ciic clidm r; x3
X1 ( x2 ( X3 sao cho' f(x1) = f(r.1).= f(xr).
{.
lo
1
cos t
I
X
niu x =0
Ciu 4., Tinh tichphdn lS I
{t
'_ i -
-,
Ciu 5 Tinh dQ dii cung dddng cong
*
f-ix=a
t, =u