Найдите производную:
y= x+ 4/x
y=1/x^2-3x
1) y=x+4x^(-1)
y'=(x²-4)/x²
2) y=x^(-2)-3x
y'=(-3x²-2)/x³
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Answers & Comments
1) y=x+4x^(-1)
y'=(x²-4)/x²
2) y=x^(-2)-3x
y'=(-3x²-2)/x³