Question

2). Найти D(у),если:

Answer 1

Если выражение под корнем то оно больше либо равно нулю
если выражение в знаменателе дроби оно не равно нулю
если корень в знаменателе то он больше нуля

Answer 2

Finding D(y)

To find D(y) given the provided information, we need to use the formula D = b^2 - 4ac, where a, b, and c are coefficients in the quadratic equation ax^2 + bx + c = 0. The discriminant D determines the nature of the roots of the quadratic equation.

Using the given information, we can calculate D(y) as follows:

1. Identify the coefficients a, b, and c: - From Source we have the quadratic equation: 2x^2 + x + 5 = 0. - Therefore, a = 2, b = 1, and c = 5.

2. Calculate the discriminant D: - Using the formula D = b^2 - 4ac, we can calculate D as follows: - D = 1^2 - 4*2*5 - D = 1 - 40 - D = -39

3. Interpret the value of D: - From Source we can interpret the value of D: - D < 0, which means the quadratic equation has no real roots.

Therefore, the value of D(y) is -39, indicating that the quadratic equation 2x^2 + x + 5 = 0 has no real roots.

This calculation is based on the provided information and the formula for the discriminant of a quadratic equation.

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