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In a ΔABC, cosA⋅cosC=λ(c2−a2)3ac, where AD is the median through A and AD⊥AC, then the value of λ is |
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Answer» In a ΔABC, cosA⋅cosC=λ(c2−a2)3ac, where AD is the median through A and AD⊥AC, then the value of λ is |
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