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11th Std BM Ex.6.4(2) If u= e^ xy then show that dho²u/dhox² + dho²u/dho y²= u(x²+y²)
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11th Std BM Ex.6.4(2) If u= e^ xy then show that dho²u/dhox² + dho²u/dho y²= u(x²+y²)
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