Mht CetDefinite IntegrationMHT CET 2026 13th April Evening ShiftMCQ+2 / -02026If $\int_0^a (x^2 - 4x + 1)dx = 6$, then the real value of $a$ isA$4$B$6$C$3$D$-3$Check AnswerClear SelectionReveal AnswerShow Explanation