Question

[HOÀNG NGỌC ANH]

 

Answer 1

[Nguyễn Việt Lâm]

1.

\(y'=\dfrac{2x+4}{2\sqrt{x^2+4x+3}}=\dfrac{x+2}{\sqrt{x^2+4x+3}}\)

2.

\(f'\left(x\right)=\dfrac{1}{2\sqrt{x+1}}+\dfrac{1}{2\sqrt{x-1}}\)

3.

\(y'=\dfrac{\left(2x+2\right)\left(x-2\right)-\left(x^2+2x+1\right)}{\left(x-2\right)^2}=\dfrac{x^2-4x-5}{\left(x-2\right)^2}\)

4.

\(y'=\dfrac{-6}{\left(6x-5\right)^2}\)

5.

\(y'=\dfrac{2.\left(-1\right)-1.1}{\left(x-1\right)^2}=\dfrac{-3}{\left(x-1\right)^2}\)

6.

\(y'=4x^3+4x\)