Determine the Angle $\theta$ Through Which the Axes Are Rotated $48 x ^ { 2 } + 69 x y + 25 y ^ { 2 } = 50$

Multiple Choice

Determine the angle $\theta$ through which the axes are rotated.Round your answer to two decimal places.​ $48 x ^ { 2 } + 69 x y + 25 y ^ { 2 } = 50$ ​

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