question archive Find the angle of rotation needed to eliminate the xy term in the equation 2x²+3xy+y²-4=0
Find the angle of rotation needed to eliminate the xy term in the equation 2x²+3xy+y²-4=0
Subject:MathPrice: Bought3
Find the angle of rotation needed to eliminate the xy term in the equation 2x²+3xy+y²-4=0.
A: 38.74 degrees
B: 71.56 degrees
C: 35.78 degrees
D: 45.72 degrees
