Find the value of the discriminant of x2 + 6x + 11

For a quadratic equation in the form ax^2+bx+c=0 the determinant is given by b^2-4ac and is used to help identify the types of roots of the equation. In this case, the determinant is (6)^2-4(1)(11) which is equal to -8.

EC

Related Maths A Level answers

All answers ▸

Use integration to find I = ∫ xsin3x dx


Find the determinant of a 2*2 matrix.


Find the equation of the straight line passing through the origin that is tangent to the curve y = ln(x).


How do you differentiate y=cox(x)/sin(x)?