The critical points of a cubic equation are those values of x where the slope of the cubic function is zero. They are found by setting derivative of the cubic equation equal to zero obtaining: f â²(x) = 3 ax 2 + 2 bx + c = 0.n other words, a cubic function is defined by a polynomial of degree three. Setting Æ (x) = 0 produces a cubic equation of the form: Usually, the coefficients a, b, c, d are real numbers. However much of the theory of cubic equations for real coefficients applies to other types of coefficients (such as complex ones).
The name Karina is of Russian and Polish origin. The meaning of Karina is pure, chaste. Karina is generally used as a girl's name. It consists of 6 letters and 3 syllables and is pronounced Ka-ri-na.
Nivea (pronounced [niËveËaË]) is a German personal care brand that specializes in skin- and body-care. It is owned by the Hamburg-based company Beiersdorf Global AG. The company was founded on March 28, 1882, by pharmacist Paul Carl Beiersdorf. In 1890, it was sold to Oscar Troplowitz. Troplowitz kept working with his scientific consultant Paul Gerson Unna and the German chemist Isaac LifschÃ¼tz on a new skin care cream.