JEE Main 201912 Jan, Evening shiftMathematicsEasyComplex Numbers and Quadratic Equations264× since 2002
The number of integral values of m for which the quadratic expression, (1 + 2m)x² – 2(1 + 3m)x + 4(1 + m), x R, is always positive, is :
JEE Main 2019 · 12 Jan, Evening shift · Q5108