" "
n + 1
an = n2 + 2n - n2 - 3, bn = · sin 2n.
2n2 + 3
"
nn
.
n!
n=1
sin 3x + x
lim .
x0
tg2x
ln2 x
lim .
x1 - 1)2
(x
"
f(x) = x 8 - x2.
f(x) = x - arctgx.
5 3x + 5
(x2 + 3) sin 2xdx, dx, dx.
cos2 x(tg2x + tgx + 2) x2(x + 1)