Determine the Angle $\theta$ Through Which the Axes Are Rotated $17 x ^ { 2 } + 72 x y - 3 y ^ { 2 } = 77$

Determine the angle $\theta$ through which the axes are rotated.Round your answer to two decimal places.​ $17 x ^ { 2 } + 72 x y - 3 y ^ { 2 } = 77$ ​

A) $\theta = 79.87 ^ { \circ }$
B) $\theta = 77.87 ^ { \circ }$
C) $\theta = 80.87 ^ { \circ }$
D) $\theta = 81.87 ^ { \circ }$
E) $\theta = 78.87 ^ { \circ }$

Correct Answer:

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