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Competitive Stats
Q49Section II (Mathematics)49 of 84

(My−Nx)/N=2x(M_y-N_x)/N=2x depends on xx alone: integrating factor ex2e^{x^2}

The differential equation (x3+xy4) dx+2y3 dy=0(x^3+xy^4)\,dx+2y^3\,dy=0 will become exact on multiplication by:

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