If \( c^{2}=a^{2}+b^{2} \), then prove that \( 4 s(s-a)(s-b)(s-c) \) \( =a^{2} b^{2} \)
If \( c^{2}=a^{2}+b^{2} \), then prove that \( 4 s(s-a)(s-b)(s-c) \) \( =a^{2} b^{2} \)
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