y^5+2y-x-3x^7=0求导
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y^5+2y-x-3x^7=0求导
y^5+2y-x-3x^7=0
5y^4*y'+2y'-1-21x^6=0
y'(5y^4+2)=21x^6+1
y'=(21x^6+1)/(5y^4+2)
5y^4*y'+2y'-1-21x^6=0
y'(5y^4+2)=21x^6+1
y'=(21x^6+1)/(5y^4+2)