In the plane rectangular coordinate system, what is the distance from the point (- 2,3) to the origin?

Root sign (2 square + 3 square) = root sign 13. The distance from the point (- 2,3) to the origin is root sign 13

In the plane rectangular coordinate system, the distance from point a (4,3) to the origin is

In the plane rectangular coordinate system, the distance from point a (4,3) to the origin = √ (4 & # 178; + 3 & # 178;) = 5;
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In the plane rectangular coordinate system, with the origin as the center and the unit length as the radius
There are two points a (COS α, sin α) and B (COS β, sin β) in the garden. Try a / B two points
The coordinate represents the cosine value of ∠ AOB, from which the value of cos π / 12 can be obtained

Because: sin α ^ 2 + cos α ^ 2 = 1; sin β ^ 2 + cos β ^ 2 = 1; we can know that

The distance from one point to the origin is 2 unit lengths, and the distance from the other point to the origin is 3 unit lengths, which means that the two points are on both sides of the origin. What is the sum of the rational numbers represented by the two points?

The sum of the rational numbers represented by these two points = 2 + (- 3) = - 1
Or - 2 + 3 = 1

How many points are 3.5 units of length away from the origin

There are only two on the number axis
But there are countless circles with a radius of 3.5 on the coordinate axis
There should be information on the title~

There are () points with a distance of 2.5 units from the origin, which represent rational numbers () and (), respectively
On the number axis, the number of tens indicated by the point of 5 unit length away from the point of - 2

There are (2) points with a distance of 2.5 units from the origin, which represent rational numbers (2.5) and (- 2.5) respectively

(write out the coordinates of the point) point a is on the negative half axis of the X axis, and the distance from the origin is 5 units
.

(-5,0)

The number of integers whose distance from the number axis to the origin is less than 3 is x, the number of positive integers whose distance from the number axis to the origin is y, and the number of integers whose absolute value is equal to 3 is Z. find the value of X + y + Z

According to the number axis, the integer whose distance to the origin is less than 3 is 0, ± 1, ± 2, i.e. x = 5, the positive integer whose distance is not more than 3 is 1, 2, 3, i.e. y = 3, and the integer whose absolute value is equal to 3 is 3, - 3, i.e. z = 2, so x + y + Z = 10

The number of integer points whose distance from the number axis to the origin is less than 2 is x, the number of integer points whose distance is not more than 2 is y, and the number of integer points whose distance is equal to 2 is Z. find the value of X + y + Z

The integers whose distance from the number axis to the origin is less than 2 have - 1, 0, 1, so x = 3; the integers whose distance from the number axis to the origin is not more than 2 have - 2, - 1, 0, 1, 2, so y = 5; the integers whose distance from the number axis to the origin is equal to 2 have - 2, 2, so z = 2, - x + y + Z = 3 + 5 + 2 = 10

All integers whose distance from the number axis to the origin is not greater than 2 have - their product is - and is---
|If a | = 1, | B | = 1 / 2, and a and B have the same number, then | a + B | =
It is known that 2 ＜ a ＜ 4, and reduced to | 2-A | + | A-4 | =

All integers whose distance from the number axis to the origin is not greater than 2 have - 2, - 1,0,1,2, their product is 0, and their sum is 0,

In the plane rectangular coordinate system, what is the distance from the point (- 2,3) to the origin?