By what angle coordinate axes must be rotated about origin in order to eliminate (xy) term from the equation
x² + xy + y² =1 ?
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The equation given here x2−4xy+4y 2+5√5+1=0 is of the form Ax2+Bxy+Cy2+Dx+Ey+F=0 . What a rotation does is it changes x & y -axes to x' ...
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Step-by-step explanation:
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