If the roots of the equation `x^2+2a x+b=0`
are real and distinct and they differ by at most `2m ,t h e nb`
lies in the interval
`(a^2,a^2,+m^2)`
b. `(a^2-m^2, a 62)`
c. `[a^2-m^2, a^2)`
d. none of these
A. `(a^(2) - m^(2), a^(2))`
B. `[a^(2) - m^(2), a^(2)]`
C. `(a^(2), a^(2) + m^(2))`
D. none of these
