Home
Class 12
MATHS
1. If the roots of the equation bx² + cx...

1. If the roots of the equation bx² + cx + a = 0 are imaginary, then for all real values of x, the expression 3b%x² + 6bcx + 2c- is (1) greater than 4ab. (2) less than 4ab. (3) greater than -4ab. (4) less than -4ab. (AIEEE 2009)

Promotional Banner

Similar Questions

Explore conceptually related problems

If the roots of the equation b x^2+""c x""+""a""=""0 be imaginary, then for all real values of x, the expression 3b^2x^2+""6b c x""+""2c^2 is (1) greater than 4ab (2) less than 4ab (3) greater than 4a b (4) less than 4a b

If the roots of the equation b x^2+""c x""+""a""=""0 be imaginary, then for all real values of x, the expression 3b^2x^2+""6b c x""+""2c^2 is (1) greater than 4ab (2) less than 4ab (3) greater than -4a b (4) less than 4a b

If the roots of the equation b x^2+""c x""+""a""=""0 be imaginary, then for all real values of x, the expression 3b^2x^2+""6b c x""+""2c^2 is (1) greater than 4ab (2) less than 4ab (3) greater than 4a b (4) less than 4a b

If the roots of the equation b x^2+""c x""+""a""=""0 be imaginary, then for all real values of x, the expression 3b^2x^2+""6b c x""+""2c^2 is (1) greater than 4ab (2) less than 4ab (3) greater than 4a b (4) less than 4a b

If the roots of the equation b x^2+""c x""+""a""=""0 be imaginary, then for all real values of x, the expression 3b^2x^2+""6b c x""+""2c^2 is (1) greater than 4ab (2) less than 4ab (3) greater than 4a b (4) less than 4a b

If the roots of the equation b x^2+""c x""+""a""=""0 be imaginary, then for all real values of x, the expression 3b^2x^2+""6b c x""+""2c^2 is (1) greater than -4ab (2) less than 4ab (3) greater than 4a b (4) less than - 4a b

If the roots of the equation b x^2+""c x""+""a""=""0 be imaginary, then for all real values of x, the expression 3b^2x^2+""6b c x""+""2c^2 is (1) greater than -4ab (2) less than 4ab (3) greater than 4a b (4) less than - 4a b

If the roots of the equation b x^2+""c x""+""a""=""0 be imaginary, then for all real values of x, the expression 3b^2x^2+""6b c x""+""2c^2 is (1) greater than 4ab (2) less than 4ab (3) greater than - 4a b (4) less than - 4a b