M: X^2+X-6≤0
(x+3)(x-2)<=0
-3<=x<=2
N :(X-a-1)(X-2a+1)≤0
(X-(a+1))(x-(2a-1))<=0
1.a+1=2a-1即a=2
(x-3)^2<=0
N={3}
M∩N=空集,可以!
2。a+1<2a-1即a>2
N:a+1<=x<=2a-1
要M...
M: X^2+X-6≤0
(x+3)(x-2)<=0
-3<=x<=2
N :(X-a-1)(X-2a+1)≤0
(X-(a+1))(x-(2a-1))<=0
1.a+1=2a-1即a=2
(x-3)^2<=0
N={3}
M∩N=空集,可以!
2。a+1<2a-1即a>2
N:a+1<=x<=2a-1
要M...