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According to the prompts, the system will ask you which disk to format, or all the disks, you choose the system C disk, the things in the D disk will not move, this can be assured. But if you have software installed in the D drive, and the registry is in the C drive, so these software installed in the D drive need to be reinstalled by yourself, but the songs and movies will not be formatted.

If you do follow the instructions of the XP installation disk step by step, the D drive will definitely not have a problem!

The premise is that you can ensure that the path selected for installation is C: (some XP installation disks may not need to be selected).

Yes, you can install it on the C drive, and there is a partition for you to choose to install! After installation, you need to install a lot of drivers, you just need to find the disk

Don't worry about it, it's going to be fine, as long as you install it, don't choose the wrong installation path and it's fine, you must choose C, otherwise things will be difficult to protect.

Of course not, even if it is installed in the C drive, the contents of the C drive will not necessarily disappear.

Because reinstalling the system is not the same as formatting, the system disk will be formatted when installing the system, so as to cause a misunderstanding that reinstalling the system will lose data.

So don't worry, since the important documents are on the D drive, it won't cause any impact. Regarding software, some software (left, formatting is deleted and of course gone) can still be used after the system is reinstalled, while some software is not, it is recommended to reinstall all the software you want to use.

ps:It's best not to install the software in the system disk,Choose a disk as the software disk,Then install as long as the drive letter in front of the path can be changed,Reinstall it is equivalent to overwriting,And leave the settings used before, etc.,It's more convenient。

My document is recommended to be transferred, right-click on My Document, click Properties, click Move, set up a place that is not a system disk, and just move it after reinstallation.

This way the contents of my documents won't be lost when I reinstall the system.

It won't be a drop, this can be assured that some software may not be compatible and need to be reinstalled.

Don't worry, as long as you don't have a grid, you can keep the D plate.

ABC and ECD are both isosceles right triangles, ACB= DCE=90°, and D is a point on AB

ad²+ae²=de²

Brief proof Because dac= dec=45°, so a, e, c, d four points are round, that is: dae=90°, so there is ad 2 + ae 2 = de 2

Suppose you add 1 person and it is exactly divisible.

Number of people = (5*7*9)*n,

The remainder of the number of people divided by 11 = (315*n - 1) %11 = (315%11)*n%11 - 1 = 7n %11 -1 = 0

Therefore n = 8

Number of people = 315*8 - 1 = 2519

Quarantine analysis:

First of all, B is analyzed separately, because B is stationary, so the force of B is balanced when it touches the silver. b is subjected to a tensile force f, and the direction is to the right, so there must be a frictional force fb against b, and the direction is old to the left, and fb = 15n

If A is analyzed separately, A is also at rest, so A is either not stressed or balanced.

From the above analysis of b, we can know that A has a leftward friction fb for B, and from Newton's third law, the effect of force is mutual, and it can be seen that B must also have a frictional force Fa for A, and the direction is to the right, fa=fb=15n.

But it is impossible for A to be stationary if A is subjected to only one force, so there must also be a frictional force f'=fa=15n on the ground facing A, in a direction to the left.

The answer is you:

The frictional force of the ground towards a is 15n and the direction is opposite to the direction of f.

The frictional force of B against A is 15N, and the direction is the same as that of F.

Solution: It can be known from the interaction of the phase and hunger section of the force.

The friction force of the ground on a is 15n to the left of the lead.

The friction force of B against A is 15n to the right.

Pure geometry is not possible, calculus must be used to understand the limit idea; First of all, the unified unit sets 360 angles equal to 2 radians; Make an internal equal n-sided shape in a circle, and find the circumference of the equal n-side: it can be divided into n triangles with the center of the circle as the vertice, and the length of its bottom edge is 2*r*sin( n), so the circumference of the equal n-sided is .

n*2*r*sin(π/n)

This circumference is the limit for n.

lim[n*2*r*sin(π/n)]

Applying the equivalent infinitesimal rule, when x 0, there is sinx x, so lim[n*2*r*sin( n)] lim[n*2*r* n]=2 rThis is the girth.

Similar to the limit method derivation of the above perimeter formula, do an internal equi-n-sided shape in a circle, and find the area of the equal n-side: it can be divided into n triangles with the center of the circle as the vertex, and according to the sinusoidal theorem, its area is 1 2*r*r*sin(2* n), so the area of the equal n-sided is .

n*1/2*r^2*sin(2*π/n)

This area is the limit for n.

lim[n*1 2*r 2*sin(2* n)] uses the equivalent infinitesimal rule, when x 0, there is sinx x, so lim[n*1 2*r 2*sin(2* n)]lim[n*1 2*r 2*2* n]= r 2.

Then you can get the answers you want! The landlord doesn't know how to continue to ask!

Take a thin, non-elastic soft line. Circle around. The length is measured, and then the diameter is measured by the caliper method, and after countless comparisons, it is found to be a constant.

The circle area can be obtained by using the ratio of the volume of the contour cylinder and the prism to the base area. The caliper method measures the diameter, and after countless comparisons, it is found to be a constant. and equal to above.

The second way is to use calculus will you ...

Beat you to death, don't learn what to ask! And so much more.

Is it to translate Chinese into English?