M ]=lim
*-*°lx sm xl «°
: lim -
x2 .. sin2 x-x2 L°-i 2sin : lim —t-7— = lun
x‘sm‘x i sin i *->° x~ sur x H
1 sm x cos x - lx
■ lim -
sm lx - ix
Loj
lim -
h0 2x sin ‘ x + x 2 sin x cos x 2xsin“ x+x‘ sin 2x H
: lim -
2 cos 2x - 2
= lim -
x(sinx)
(x2) sin2 x + x2 (sin2 x)
cos2x-(2x) -2
(2x) sin2x+2x(sin: x] +(x2) sin2x+x2(sin2x)
2 cos 2x - 2
*->° 2siir x+2xsin2x+2xsin 2x+ 2x* cos2x *->° 2sin‘ x+4xsin 2x+2x* cos2x H -4sin2x .. -4sin2x
[?]
lim -
: lim -
H *->°2sin2x+4sin2x+8xcos2x+4xcos2x-4x sin2x *->° 6sin 2x+12xcos2x-4x sin2x H
m
LOJ
lim -
-8cos2x
-8
1
H *-*° 12cos2x+12cos2x-24xsin2x-8xsin2x-9x‘cos2x 12 + 12 3