Tính vi phân của hàm số $y=\frac{4x+1}{\sqrt{x^{2}+2}}$

Question

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4 câu trả lời

Answer 1

$dy=\frac{8-x}{(x^{2}+2}^{\frac{3}{2}}dx$

Answer 2

$dy=\frac{8+x}{(x^{2}+2}^{\frac{3}{2}}dx$

Answer 3

$dy=\frac{8+x}{(x^{2}+2}^{\frac{1}{2}}dx$

Answer 4

$dy=\frac{8-x}{(x^{2}+2}^{\frac{1}{2}}dx$