Question

If the zeroes of the quadratic polynomial ax^2+ bx +c, a ≠ 0 are equal, then what  are the signs of a and c?

class 10 level​

Answer 1

Answer:

Find intervals in which the Function f(x) = Cos 3x -Cos 2x is increasing /decreasing if X = [ 0, Pi/3]. Then find absolute Maxima and Local Minima in the same interval.

Answer 2

Answer:

a and c have same signs

Step-by-step explanation:

The zeroes of the given quadratic polynomial ax² + bx + c, c ≠ 0 are equal. If coefficient of x² and constant term have the same sign i.e., c and a have the same sign. While b i.e., coefficient of x can be positive/negative but not zero.