Question

Q.2 .: x² +38-4 Ifx is real then find the range of y=- x? +7x +12

JEE/Engineering Exams

Maths

Solution

4.0 (1 ratings)

y=x²+3x-4 + XER 22+72+12 arte y = x²+42-*-4 d ana x² + 3x +42+12 y = (x+4) (2-) t ahunan (x+3)(x+4) a cannot be o RE(-00,-3) U. (-3,-4) U (-4,00) | Ans