In a \( \triangle A B C, a^{2} \sin 2 C+c^{2} \sin 2 A= \)
(A) \( \Delta \)
(B) \( 2 \Delta \)
(...
In a \( \triangle A B C, a^{2} \sin 2 C+c^{2} \sin 2 A= \)
(A) \( \Delta \)
(B) \( 2 \Delta \)
(C) \( 3 \Delta \)
(D) \( 4 \Delta \)
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