- #1
stunner5000pt
- 1,461
- 2
Consider the equation x^2 + xy + y^2 = 1. Find a rotation so that the equation has no cross term.
here a=b=c=1 right
but how do i find an angle by which to rotate?
the text says the angle is pi/4... i don't know how they got that .. though
here a=b=c=1 right
but how do i find an angle by which to rotate?
the text says the angle is pi/4... i don't know how they got that .. though