if one root of the quadratic equation with rational coefficients is rational then othervroot must be
Answers
Answered by
8
Step-by-step explanation:
α + β = (a+√b) + (a-√b) = 2a, a rational number and, αβ = (a+√b)(a-√b) = a² - b, a rational number. So, the other root of a quadratic equation having the one root as (a+√b) is (a-√b), where a and b are rational numbers. If the discriminant of the quadratic equation ax2+bd+c=0 is zero, then what will be its roots?
Similar questions