Let `C_1` and `C_2` be two circles whose equations are `x^2+y^2-2x=0` and `x^2+y^2+2x=0` and `P(lambda, lambda)` is a variable point .
List 1
a) P lies inside `C_1` ​ but outside `C_2`
​ b)P lies inside `C_2` ​ but outside `C_1`
​ c)P lies outside `C_1` ​ but outside `C_2`
​ d)P does not lie inside `C_2` ​
List 2
p)λ ϵ (−∞,−1)∪(0,∞) q)λ ϵ (−∞,−1)∪(1,∞) r)λ ϵ (−1,0) s)λ ϵ (0,1)