@@ExamSolutions_Maths Hello, Can I just confirm the convention ? The x axis is positive to the right. The y axis is positive into, or out of the paper ???? and the z axis is positive upwards . Thank you.
Can someone please explain how can the length of a vector (cross product) which is a “1D line” be equal to the area which is 2D this is somehow confusing to me?
You always turn clockwise from the first vector to the second and the normal vector would be in the direction that the corkscrew goes. Try opening a bottle of wine to see this in action.
Its all about perspective, if you think of the diagram as 3D and view it on the other side of the axis (imagine your standing on the Y axis and looking at the z and x axis and the direction of the angle between k and i) then you will see that the direction is going clockwise.
sometimes i don’t know what i would do without this legend 😞
Examsolutions is the best . You help me significantly
Thanks for your kind words!
@@ExamSolutions_Maths Hello, Can I just confirm the convention ? The x axis is positive to the right. The y axis is positive into, or out of the paper ???? and the z axis is positive upwards . Thank you.
You very well explained the cross product the standard basis vectors unit vectors,thank you.
best video ever seen. tried to understand this for a long time.
Really useful, meloveyoulongtime.
Reallyyyy useful!!!Mock exam next week
Perfect ! thanks alot !
Thank you sir
1:23 go on Sidders!!
Can someone please explain how can the length of a vector (cross product) which is a “1D line” be equal to the area which is 2D this is somehow confusing to me?
Thank you very much!
That's okay.
How do you know in which direction to put the corkscrew... could go above or below etc
You always turn clockwise from the first vector to the second and the normal vector would be in the direction that the corkscrew goes. Try opening a bottle of wine to see this in action.
I think you always want the corkscrew to go in an inwards direction, so you place it below/above depending which one achieves that?
Very helpful
How do I know whether to put the screw upside down or right side up?
bind This is the point of the second video
Don't you mean anticlockwise at about 8:30?
Its all about perspective, if you think of the diagram as 3D and view it on the other side of the axis (imagine your standing on the Y axis and looking at the z and x axis and the direction of the angle between k and i) then you will see that the direction is going clockwise.
@@tuneese2561 Thanks, that makes sense
@@SheikhEddy Im glad i can help even if it was 3 years after you asked. So cool how you replied too.
@@tuneese2561 lol I imagine he got stuck at this part for straight 3 years. That would be horrible.
How'd the exam go mate
Sorry but if you take this module, you're insane, jk you guys are amazing mathematicians
guys watch on 1.5x speed 👏🏾soon blow my guy 💨