Đạo hàm của hàm số $f(\varphi )=\frac{cot(2\varphi -2)}{\sqrt{\va

Question

Cơ bản

Đạo hàm của hàm số $f(\varphi )=\frac{cot(2\varphi -2)}{\sqrt{\varphi}+1}$ bằng biểu thức nào sau đây?

4 câu trả lời

Answer 1

$\frac{-4\sqrt[1-cot^{2}(2\varphi -2)](\sqrt{\varphi}+1)-cot(2\varphi -2)}{2\sqrt(\sqrt{\varphi }+1)^{2}}$

Answer 2

$\frac{-2\sqrt[1+cot^{2}(2\varphi -2)](\sqrt{\varphi}+1)-cot(2\varphi -2)}{2\sqrt(\sqrt{\varphi }+1)^{2}}$

Answer 3

$\frac{-4\sqrt[1+cot^{2}(2\varphi -2)](\sqrt{\varphi}+1)+cot(2\varphi -2)}{2\sqrt(\sqrt{\varphi }+1)^{2}}$

Answer 4

$\frac{-4\sqrt[1+cot^{2}(2\varphi -2)](\sqrt{\varphi}+1)-cot(2\varphi -2)}{2\sqrt(\sqrt{\varphi }+1)^{2}}$