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This article will explain in detail what the two zeros of the function mean. The content of the article is of high quality, so the editor will share it with you for reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

A function has two zeros that have two meanings:

1. The image of this function has two intersections with the x-axis.

2. Make the analytical expression of this function equal to zero and have two zeros.

Necessary condition: the independent variable of a function has several zeros to the power. Two to the power of 0.2, two or more to the power of two or more.

Determining condition: zero is the Abscissa of the intersection of the function image and the x-axis, that is, the x value at the time of ytwin 0. There are two zeros, that is, there are two intersections between the function image and the x-axis, and they (that is, the intersection) are (x1,0) and (x2,0), where x1 and x2 are called zeros. More than two means that there are more than two intersecting points, and their zero point is x1magentin x2rex3.

Extended data:

When f (x) = 0, the value of the corresponding independent variable x, it should be noted that the zero point is a numerical value, not a point, is the Abscissa of the intersection of the function and the X axis.

The zero point of the function yfolf (x) is the real root of the equation f (x) = 0, that is, the Abscissa of the intersection point between the image of the function yfolf (x) and the x axis (straight line ytal0), so the equation f (x) = 0 has a real root. It is deduced that the image of the function yquadf (x) intersects with the x axis, and that the function yquadf (x) has zero points.

The variable zero is the point where the function image passes through that point, that is, the value on both sides of that point is a different sign (the value of that point function is zero).

Constant sign zero means that the function image does not pass through that point, that is, the value on both sides of that point is the same sign (the value of that point function is zero).

Note: if the maximum value of the function is 0, you cannot use this method to find the interval where the zero lies.

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