设全集U={(x,y)|x∈R,y∈R},S={(x,y)|x-2/y-3=a+1,a是常数},P={(x,y)|(a2-1)x+(a-1)y=15,a是常数｝.1.若a=0,求CU（S∪CUP)2.若S∩P=∅,求实数a的值

Question

设全集U={(x,y)|x∈R,y∈R},S={(x,y)|x-2/y-3=a+1,a是常数},P={(x,y)|(a2-1)x+(a-1)y=15,a是常数｝.
1.若a=0,求CU（S∪CUP)
2.若S∩P=∅,求实数a的值

Answer 1

1)a=0时,S={(x,y)|y=x+1且y不等于3}P={(x,y)|(y=-x-15｝CUP={(x,y)|(y不=-x-15｝S∪CUP=sCU（S∪CUP)={(x,y)|y不=x+1或(2,3)}2）因为是,s,p分别表示两条直线(s不包涵点（2,3））.若S∩P=∅有两直线平行或两直线...