If a,b`in` R and the equation `x^2+(a-b)x+1-a-b=0` has unequal roots for all b`in` R then a can be

If a, b in R , and the equation x^(2) + (a - b) x - a - b + 1 = 0 has real roots for all b in R , then a lies in the in terval

If a x^2+(b-c)x+a-b-c=0 has unequal real roots for all c in R ,then

If a x^2+(b-c)x+a-b-c=0 has unequal real roots for all c in R ,then

If a x^2+(b-c)x+a-b-c=0 has unequal real roots for all c in R , then

If ax^(2)+(b-c)x+a-b-c=0 has unequal real roots for all c in R,then

If a x^2+(b-c)x+a-b-c=0 has unequal real roots for all c in R ,t h e n b a >0

If a x^2+(b-c)x+a-b-c=0 has unequal real roots for all c in R ,t h e n

If ax^(2)+(b-c)x+a-b-c=0 has unequal real roots for all c epsilon R , then (i) b a > 0