Question

Q.3 If the roots of the equation bx2 + cx+a=0 be imaginary, then for all real values of x, the expression 362x2 +6bex + 2c2 is - [AIEEE-2009) (A) Greater than 4 ab (B) Less than 4ab (C) Greater than-4ab (D) Less than-4ab

JEE/Engineering Exams

Maths

Solution

4.0 (1 ratings)

roots of button to so is imaginary c²-4ab Lo → ->-4ab- Bbm + 6bcx +2c=y Coro - 463b"] [ day 366 02 2466 7470 & RER 3 - 2 2 - 4 20 cty zo LG G > G-4ab)