find the differentiation of y=x^4 -1/x^4 +2 x³
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Step-by-step explanation:
y = x^4 - 1/x^4 + 2x^3
dy/dx = d(x^4)/dx - d(x^-4)/dx+2 d(x^3)/dx
= 4x^3 - (-4x^-5)+2×3x^2
= 4x^3+4/x^5+6x^2
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