It is known that the lengths of three sides of the triangle ABC are a, B, C respectively, and a & gt; C, then | C-A | - √ (AC-B) & # 178=

It is known that the lengths of three sides of the triangle ABC are a, B, C respectively, and a & gt; C, then | C-A | - √ (AC-B) & # 178=

|c-a|-√(ac-b)²
= a-c - (ac-b)
= a-c -ac+b
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