- #1

iqjump123

- 61

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## Homework Statement

Find a linear transofmration from X={x1,x2,x3} to U={u1,u2,u3} which will remove the cross product term in the quadratic form of equation 2X

_{1}

^{2}+4X

_{2}

^{2}+5X

_{3}

^{2}-4X

_{1}X

_{3}

and thus write the resulting quadratic form in u1,u2,u3.

## Homework Equations

## The Attempt at a Solution

No idea at the moment. I presume that the 4x1x3 term is the term that I need to have disappear, but other than that, I can sure use some help. Thanks