Write the appropriate rotation formulas so that in a rotated system the equation has no x'y'-term.5x2 - 4xy + 2y2 - 8x + 8y = 0

A. x = x' - y'; y = x' + y'
B. x = ; y = 
C. x = ; y = 
D. x = x' - y'; y = x' + y'


Answer: B

Mathematics

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