# Thread: Vector Problem - Need Help

1. ## Vector Problem - Need Help

Hi I'm new here I'm engineering student from NY.

Question: Consider the planes vector u · r = d1 and vector V · r = d2, if vector u x v not equal to zero, give a vector which is tangent to the intersection of the planes

Thanks

2. ## Re: Vector Problem - Need Help

Originally Posted by angelme
Question: Consider the planes vector u · r = d1 and vector V · r = d2, if vector u x v not equal to zero, give a vector which is tangent to the intersection of the planes
I do not understand the wording used in this question.
These two planes are not parallel so their intersection is a line.
So it makes no sense to say a vector which is tangent to the intersection.
Do you mean parallel instead of tangent?

3. ## Re: Vector Problem - Need Help

I got this question from a homework. I don't understand the question too.
→ → → → → →
Consider the planes u · r = d1 and v · r = d2, if u x v not equal to zero,
give a vector which is tangent to the intersection of the planes

4. ## Re: Vector Problem - Need Help

Originally Posted by angelme
I got this question from a homework. I don't understand the question too.
→ → → → → →
Consider the planes u · r = d1 and v · r = d2, if u x v not equal to zero,
give a vector which is tangent to the intersection of the planes
Then you need to asked the person who wrote the question what it means.