Jee MainQuadratic Equation And InequalitiesJEE Main 2021 (Online) 31st August Morning ShiftMCQ+4 / -12021ENHIcosec18\(^\circ\) is a root of the equation :Ax2 + 2x \(-\) 4 = 0B4x2 + 2x \(-\) 1 = 0Cx2 \(-\) 2x + 4 = 0Dx2 \(-\) 2x \(-\) 4 = 0Check AnswerClear SelectionReveal AnswerShow Explanation