dy/dx=(4x^3 y)/x^4+y^2
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dy/dx=(4x^3 y)/x^4+y^2
dy/dx=(4x^3 y)/x^4+y^2
dy/dx=(4x^3 y)/x^4+y^2
(4y^3-x)dy/dx=y 求通解
dy/dx=(4x^3 y)/x^4+y^2
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隐微分法求导数完全看不懂implicit differentiation(隐微分求导数).例子:y^2+y=3x^5-7x我明白下一步怎么变成2y(dy/dx)+1(dy/dx)=15x^4(dx/dx)-7(dx/dx)为什么它在两边求了导数之后,还要分别乘上dy/dx和dx/dx啊?
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