kc_renji

i was given a question as follow-> Points A,B and C have coordinates (1,2,1),(-1,1,3) and (-2,-2,-2) respectively.Calculate the vector product AB x AC, angle BAC and a unit vector perpendicular to the plane containing A,B and C.

I obtained the equation of the plane ABC as 11x-12y+5z = -8.I got the angle of BAC as 1.34 rad.The thing I am confused is that to obtain the unit vector is to use A x (B x C) or (A x B) x C to get the unit vector?Since the brackets in cross product yields different results..please help

correction for the first sentence ADD A. It is ADD CL,AL

im a lil confuse with the beginning and ending address with the upper and lower range address.Is it the same meaning?

I encounter a question that given ES = 30FF and it asks me to calculate the beginning and ending address.So if beginning address is equivalent to lower range address then the answer is 30FF0 + 0000 ?

i have Sata hdd with pentium dual core processor 3,0Hz

I tried to format my pc and i have downloaded Uli Sata Raid controller M1573 so that i can see my drive which one to format during formatting.however,during the "installing windows: it popped out a "Hardware Installation" window stating that my ULi sata controller m1573 not pass Windows logo.It ask me whether to stop installation of this software or continue by pressing "Yes" or "No"..However,my keyboard gives no response.and the installation is stucked there..Can someone help me plz?

i bought a dvd series.when i play in comp it is in Audio_Ts and Video_Ts.

if i want to have a copy to play in dvd player do i need to convert?

i tried to convert using IMToo Platinum 5 Ultimate.after i converted al those files into .vob i stil could not play in dvdplayer.

windows canot finished instalation after changing a new motherboard?

i js changed my motherboard,Sis chipset to Intel chipset.After that, I try to re-install a fresh copy of window XP however, after it prompts me to press Enter for restart to continue installation, it was stucked during loading the window XP logo.Is it have to repair the window XP before install a fresh copy of OS?If so what should i need to do now?

i js changed my motherboard,Sis chipset to Intel chipset.After that, I try to re-install a fresh copy of window XP however, after it prompts me to press Enter for restart to continue installation, it was stucked during loading the window XP logo.Is it have to repair the window XP before install a fresh copy of OS?If so what should i need to do now?

i have uninstalled nero suite but however, there is still a Nero 7 Demo that i cannot remove.I try to remove it at control panel -> add/remove but there is a error stating that "the action is only valid for products that are currently installed."anyone can help me with this??

i would like to know the difference between Solaris and Mac OS X in terms of their kernel, performance, and how they work. Solaris works on server only?

im trying to build an web application using sql express 2005 and visual web developer 2005.

however,when i connect to database i got an error, "Cannot open user default database.Login failed.Login failed for user sa"

Any idea please?urgent...

Error 1 Value of type 'System.Data.SqlClient.SqlDataReader' cannot be converted to 'Integer'.

Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click

Dim con As New SqlConnection()

Dim cmd As New SqlCommand

Dim rowsAffected As Integer

con.ConnectionString = "data source=localhost;user id=sa;password=;initial catalog=datStaff"

cmd.CommandText = "SELECT Username,Password FROM datStaff "

cmd.CommandType = CommandType.Text

cmd.Connection = con

con.Open()

rowsAffected = cmd.ExecuteReader

con.Close()

how to code a login system that a username can be verified through vb 2005 express in which the database stored using sql 2005 express?what namespace shall i include apart from system.data.,system.data.sqlclient and system.data.sqltypes?

im just a beginner.

im having trouble in configuring the MS SQL Server 2005 Express Edition which i received error that it does not allow remote connection.I have searched for Microsoft website.It asked me to enable the remote connection step by step, make exception to the firewall to unblock it but yet get rid out of it.The error is as follow: "Cannot connect to localhost.An error has occurred while establishing a connection to a server.When connecting to SQL server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections.(provider:Named Pipes Provider,error 40 - Could not open a connection to SQL Server.)(Microsoft SQL Server,Error:2)".

And I am not sure if my PC running Windows XP Home which does not support Microsoft IIS would be the problem causing that error?SQL Server 2005 requires Microsoft IIS to run also???

Please help.