2.282.
.
2.283.
.
2.284.
2
2
1, 2 1 1
t
t t t
x
x
y e e y e e
.
2.285.
.
2.286.
.
2.287.
.
2.288.
2
12
1
,
2 1 2 1
yy
xy
yy
x y x y
.
2.289.
22
3 6 2 2
,
22
x y x y y
yy
y x y x
.
2.290.
.
2.291.
2.292. 2, 2.293. 2, 2.294. 1/3, 2.295. 1/3, 2.296. 1/128, 2.297. 1, 2.298.
1/6, 2.299. 16, 2.300. 1, 2.301. 2, 2.302. 0, 2.303. ,
2.304. , 2.305. 0, 2.306. 1/2, 2.307. 0, 2.308. 1/2, 2.309. 1/2,
2.310.
, 2.311. 1, 2.312. 1, 2.313. e, 2.314. 1, 2.315. 1,
2.316.
, 2.317. e
1/6
. 2.318. 2, 2.319. 0.25, 2.320. 3,
2.321, 1/15, 2.322. 1, 2.323. -12, 2.324. 2/3, 2.325. 8/11,
2.326. 11/24, 2.327. -10/3, 2.328. 0.25, 2.329. -8, 2.330. 0.15, 2.331. -2.