Recent content by sevag00

I want direct solution for the x-es. I'm not going to plug in millions of values to see if the norm is 1.

I know that method. But then those equations will become parameters. They will depend on the value of x4 which has infinite solutions.

I think i did it right. I replaced x2/x1 with X x3/x1 with Y and x4/x1 with Z. Then solved 3 equations with 3 unknowns.

Not getting your approach.

What ratios? I want to find the components of x.

Wait a minute. You got me confused. There are 3 equations with 4 unknown. The equation of the norm cannot be included with the other three.

Ah yes. 4 equations with 4 unknowns.

3 equations with 4 unknowns. Will this yield a solution?

Yeah, but the chapter only explains the dot product. So, i think the problem should be solved using dot product.

Using dot product. x1.a + x2.b + x3.c = 0. Same for (d, e, f).

Homework Statement Find two vectors in R4 of norm 1 that are orthogonal to the vectors u = (2, 1, −4, 0), v = (−1, −1, 2, 2) and w = (3, 2, 5, 4). Homework Equations The Attempt at a Solution What i did was, i let a vector x = (x1, x2, x3, x4) that has a norm of 1 and...

I know what your saying. Your taking a direction vector from point O to the line of action of the force. And by using cross product, you're getting the magnitude and direction. But I'm not using that method. I'm using Varignon's theorem.

Okay. But there is something called right hand rule that you indirectly used to find the direction of (a) and (b). I want to know how the right hand rule is used.

Yeah. But first i should find the direction of the moments of the components of the force so that i get the right result.

I know how to find the magnitude. I'm asking for the direction.