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carleygalloway103
28.08.2019 •
Mathematics
What is the maximum vertical distance between the line y=x+2 and parabola y=x^2 for -1< =x< =2
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Ответ:
are the intersection points of the line and parabola.
Differentiating, we have
which has one critical point at
At this point, we have
as the maximum vertical distance.
Ответ:
If D< 0, the roots of the quadratic equation will b complex.
Step-by-step explanation:
Let
is the given quadratic equation.
So, if the Discriminant (D) =
, the the equation will have only complex solutions.
Complex roots are represented in the form of![(x \pm iy)](/tpl/images/0348/0557/2b81a.png)
1. x represents the X axis (real) co ordinate,
y represents the Y axis (imaginary) coordinate
2. Also, the graph of the with equation D < 0 NEVER CROSSES the X - axis, as there are no real roots of the equation, only complex roots.
3. Here. roots are always identical but are opposite in signs. Such pair or roots with opposite sign are called CONJUGATE PAIRS.