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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 12: tính đạo hàm giùm y = $\frac{x+1}{\sqrt[]{x²-x+1}}$

Toán Lớp 12: tính đạo hàm giùm
y = $\frac{x+1}{\sqrt[]{x²-x+1}}$

Comments ( 1 )

  1. Giải đáp:
     
    Lời giải và giải thích chi tiết:
     y=\frac{x+1}{\sqrt{x^2-x+1}}
    y’=\frac{(x+1)’.(\sqrt{x^2-x+1})-(\sqrt{x^2-x+1})’.(x+1)}{(\sqrt{x^2-x+1})^2}
    y’=\frac{1.(\sqrt{x^2-x+1})-\frac{2x-1}{2\sqrt{x^2-x+1}}.(x+1)}{(\sqrt{x^2-x+1})^2}
    y’=\frac{2(x^2-x+1)-(2x-1)(x+1)}{2(x^2-x+1)(\sqrt{x^2-x+1})}
    y’=\frac{-3x+3}{2(x^2-x+1)(\sqrt{x^2-x+1})}

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222-9+11+12:2*14+14 = ? ( )