JEE Math Practice Question
Consider the two sets : A = {m $$ \in $$ 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?
- A.A $$ \cap $$ B = {–3}
- B.B – A = (–3, 5)
- C.A $$ \cup $$ B = R
- D.A - B = ($$ - $$$$ \propto $$, $$ - $$3) $$ \cup $$ (5, $$ \propto $$)
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