6¶: O•yÒ:
¤3:
•|Ò: Œ Ò:
;’:
—µ‚ ‰KžØ‡‡Ld‚
1›3IŒÆ)êÆ¿mûmÁò땉Y
(êêêÆÆÆaaapppccc???|||, 2021 c 5 )
•Á/ª: 4ò •Ážm: 180 ©¨ ÷©: 100 ©
KÒ ˜ n o o©
֩ 20 15 15 20 10 10 10 100
©
555¿¿¿:
1. 1˜–1oŒK´7‰K, 2l1Ê–1›ŒK¥?À 3 K, KÒ‡W\
þ¡L¥ (õÀÃ).
2. ¤k‰KÑL3IO‰K’þ, 3Áò½Ù§’þþÃ.
3. —µ‚†>žÕ‰K, —µ‚Øk6¶9ƒ'IP.
4. X‰K˜xØ, Œ3•¡, ¿I²KÒ.
˜! (K 20 ©, zK 5 ©) W˜K
©
µ<
1. Ω : (x − 2)
2
+ (y − 3)
2
+ (z − 4)
2
6 1, KÈ©
ZZZ
Ω
(x
2
+ 2y
2
+ 3z
2
) dxdydz =
1424π
15
.
2. x
n
=
n
X
k=1
e
k
2
k
, y
n
=
Z
n
0
e
x
2
dx, K lim
n→∞
x
n
y
n
= 2 .
3. Ý
1 0 1 0 0
0 1 0 1 0
0 0 1 0 1
0 0 0 1 0
0 0 0 0 1
Jordan IO.•
1 1
1 1
1
1 1
1
.
4. A • 2021 é¡Ý, A z˜1þ• 1, 2, . . . , 2021 ˜‡ü. K A ,
tr A = 1011 ×2021 .
1