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Differential Equations

WB JEE 2021

MCQ+1 / -0.252021
যদি \(x{{dy} \over {dx}} + y = {{xf(xy)} \over {f'(xy)'}}\) হয়, তবে | f(xy) | হবে (যেখানে k হল যদৃচছ ধনাত্বক ধ্রুবক।)

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