JEE Main 20209 Jan, Morning shiftMathematicsMediumComplex Numbers and Quadratic Equations264× since 2002The number of real roots of the equation, e4x + e3x – 4e2x + e^x + 1 = 0 is :AOption A. 1BOption B. 2COption C. 3DOption D. 4CheckSkip · show solution