12th Maths | Example 7.9 | Salt Pile Sum | Chapter 7 | 5 Marks | TN State Board | Tamil + English
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12th Maths | Example 7.9 | Salt Pile Sum | Chapter 7 | 5 Marks | TN State Board | Tamil + English
In this video, we solve Example 7.9 from Chapter 7 (Application of Differential Calculus). This "Salt Pile" problem is a classic 5-mark question often asked in mid-terms and public exams. The Key Logic: Understanding "Height = Diameter" (h = 2r). Why we substitute r = h/2 into the Volume formula. Step-by-step differentiation of V = πh³/12 ...
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