Class 12 Book Solution from S N Dey in Differentiation Question No: 10A.(4)(19)
\(y \sqrt{x^2 + 1} = log(\sqrt{x^2 + 1} - x)\) হলে, দেখাও যে \((x^2+1){dy \over dx} + xy + 1 = 0\) |
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Class 12 (দ্বাদশ শ্রেণী) S N Dey (এস এন দে - দ্বাদশ শ্রেণী) Other Chapter Solutions
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