-6; x？ \ 16+Y？ \8= 1; 8√3 ; 2√7
17 -2n\﹙n+ 1﹚
18 -2√7\7
19 0.3 0.42 2.68
20 y=x？ \4-2 2
2 1 a,b= 1k∈﹙-∝,0]
22 5√2
23 x=4cosαy=4+4sinα
2√3
24 x∈﹙-∝,- 1]∪[3,+∝﹚
2
The preliminary results will be announced on February 65438+February 12, 2022, and inquiries can be made at that time.
1. Scores of finalists in each g