JEE Main 20203 Sep, Morning shiftMathematicsMediumSets, Relations and Functions168× since 2002
Consider the two sets :
A = {m R : both the roots of
x²
– (m + 1)x + m + 4 = 0 are real}
and B = [–3, 5).
Which of the following is not true?
JEE Main 2020 · 3 Sep, Morning shift · Q5358