aaa

[\begin{bmatrix}\begin{pmatrix}- \frac{1}{2 a - 2 c} \left(- a^{2} - b^{2} + c^{2} + d^{2} + r_{1}^{2} - r_{2}^{2} + \left(2 b - 2 d\right) \left(- \frac{4}{8 a^{2} - 16 a c + 8 b^{2} - 16 b d + 8 c^{2} + 8 d^{2}} \sqrt{- \left(a - c\right)^{2} \left(- a^{2} + 2 a c - b^{2} + 2 b d - c^{2} - d^{2} + r_{1}^{2} - 2 r_{1} r_{2} + r_{2}^{2}\right) \left(- a^{2} + 2 a c - b^{2} + 2 b d - c^{2} - d^{2} + r_{1}^{2} + 2 r_{1} r_{2} + r_{2}^{2}\right)} - \frac{1}{2 a^{2} - 4 a c + 2 b^{2} - 4 b d + 2 c^{2} + 2 d^{2}} \left(- a^{2} b - a^{2} d + 2 a b c + 2 a c d - b^{3} + b^{2} d - b c^{2} + b d^{2} + b r_{1}^{2} - b r_{2}^{2} - c^{2} d - d^{3} - d r_{1}^{2} + d r_{2}^{2}\right)\right)\right), & - \frac{4}{8 a^{2} - 16 a c + 8 b^{2} - 16 b d + 8 c^{2} + 8 d^{2}} \sqrt{- \left(a - c\right)^{2} \left(- a^{2} + 2 a c - b^{2} + 2 b d - c^{2} - d^{2} + r_{1}^{2} - 2 r_{1} r_{2} + r_{2}^{2}\right) \left(- a^{2} + 2 a c - b^{2} + 2 b d - c^{2} - d^{2} + r_{1}^{2} + 2 r_{1} r_{2} + r_{2}^{2}\right)} - \frac{1}{2 a^{2} - 4 a c + 2 b^{2} - 4 b d + 2 c^{2} + 2 d^{2}} \left(- a^{2} b - a^{2} d + 2 a b c + 2 a c d - b^{3} + b^{2} d - b c^{2} + b d^{2} + b r_{1}^{2} - b r_{2}^{2} - c^{2} d - d^{3} - d r_{1}^{2} + d r_{2}^{2}\right)\end{pmatrix}, & \begin{pmatrix}- \frac{1}{2 a - 2 c} \left(- a^{2} - b^{2} + c^{2} + d^{2} + r_{1}^{2} - r_{2}^{2} + \left(2 b - 2 d\right) \left(\frac{4}{8 a^{2} - 16 a c + 8 b^{2} - 16 b d + 8 c^{2} + 8 d^{2}} \sqrt{- \left(a - c\right)^{2} \left(- a^{2} + 2 a c - b^{2} + 2 b d - c^{2} - d^{2} + r_{1}^{2} - 2 r_{1} r_{2} + r_{2}^{2}\right) \left(- a^{2} + 2 a c - b^{2} + 2 b d - c^{2} - d^{2} + r_{1}^{2} + 2 r_{1} r_{2} + r_{2}^{2}\right)} - \frac{1}{2 a^{2} - 4 a c + 2 b^{2} - 4 b d + 2 c^{2} + 2 d^{2}} \left(- a^{2} b - a^{2} d + 2 a b c + 2 a c d - b^{3} + b^{2} d - b c^{2} + b d^{2} + b r_{1}^{2} - b r_{2}^{2} - c^{2} d - d^{3} - d r_{1}^{2} + d r_{2}^{2}\right)\right)\right), & \frac{4}{8 a^{2} - 16 a c + 8 b^{2} - 16 b d + 8 c^{2} + 8 d^{2}} \sqrt{- \left(a - c\right)^{2} \left(- a^{2} + 2 a c - b^{2} + 2 b d - c^{2} - d^{2} + r_{1}^{2} - 2 r_{1} r_{2} + r_{2}^{2}\right) \left(- a^{2} + 2 a c - b^{2} + 2 b d - c^{2} - d^{2} + r_{1}^{2} + 2 r_{1} r_{2} + r_{2}^{2}\right)} - \frac{1}{2 a^{2} - 4 a c + 2 b^{2} - 4 b d + 2 c^{2} + 2 d^{2}} \left(- a^{2} b - a^{2} d + 2 a b c + 2 a c d - b^{3} + b^{2} d - b c^{2} + b d^{2} + b r_{1}^{2} - b r_{2}^{2} - c^{2} d - d^{3} - d r_{1}^{2} + d r_{2}^{2}\right)\end{pmatrix}\end{bmatrix}]