The homework thread

[T.Vengeance]

Guys ur homework aint nothing. ive been on my English GCSE Language Coursework for over 5 hours now and i aint even finished. I hate it when they tell u to submit it a day early at the last minute (darn-it!) 

Speaking of English...that double negative lol. So I assume our homework is something?

[MetalicMassacre]

If anyone is good at spanish I need help putting a verb into command form. The verb is poner and my teach *who is completely retarted* said that if its irregular in the yo form its differnt, but I have an assignment that I need to know how to use poner in command form if anyone can help that would be great.

[Nxl8]

Two vectors are parallel to each other if their cross product = 0 (since the magnitude of the cross product is also defined as |a||b|sin(theta),where theta = 0 when both vectors are parallel). Another way of understanding this, given that this is only in 2D is to think of it as what scalar multiplication of vector b makes vector b have both the j components of vector a and b cancel each other to create a new vector that only has some scalar multiplication of i. Through the cross product shown below, where x = 5, you can see this more clearly.

Thanks that has cleared it up especially the visulaisation. For the second question do I make it so that the variable makes i and j equal as it is parallel to i + j?

[T.Vengeance]

Thanks that has cleared it up especially the visulaisation. For the second question do I make it so that the variable makes i and j equal as it is parallel to i + j?

Yup. I'd just do the cross product to make everything easier. Tbh, I only could figure out that 2nd explanation by doing the cross product, and just worked backwards to show you that the 5j and -5j cancel out.

 

[Thebman712]

Who wants to write a essay for me

[Nxl8]

Yup. I'd just do the cross product to make everything easier. Tbh, I only could figure out that 2nd explanation by doing the cross product, and just worked backwards to show you that the 5j and -5j cancel out.

 

Thanks for the explaination, I also got our sub teacher to explain this to me as I had maths before you could respond.

[T.Vengeance]

Thanks for the explaination, I also got our sub teacher to explain this to me as I had maths before you could respond.

Yup np

[lachyman]

I've got something here:

 

6x-6y/4y-4x

 

y-x/xy-y^2

 

4a-2b/4a^2+b^2-4ab

 

x^2+y^2-z^2-2xy/x^2-y^2+z^2+2xz

 

These are supposed to be simplified. We were trying to solve this for like an hour and didn't come up with a rational answer, so I'm asking for help here. I personally hate this stuff  :angry:

[Freaky_spider]

 

 

4a-2b/4a^2+b^2-4ab

 

 

third one is (i think):

 

4a-2b/2a-b

 

but its pretty late so i could be wrong

 

and im wrong -.-

[T.Vengeance]

I've got something here:

 

6x-6y/4y-4x

 

y-x/xy-y^2

 

4a-2b/4a^2+b^2-4ab

 

x^2+y^2-z^2-2xy/x^2-y^2+z^2+2xz

 

These are supposed to be simplified. We were trying to solve this for like an hour and didn't come up with a rational answer, so I'm asking for help here. I personally hate this stuff  :angry:

[lachyman]

Thanks a lot! Now we all get it, it seems we forgot that we can pick a number to multiply the bracket with. 

Thanks again.