Question

Choose the correct answer​

Answer 1

Answer:

(D)

Step-by-step explanation:

Formula: d/dx (u / v) = { v d/dx(u)  -  u d/dx(v) } / v²

Therefore,

Solution:

{ (2x - 1) d/dx(3x² + 1)  -  (3x² + 1) d/dx(2x - 1) } / (2x - 1)²

= {(2x - 1)(6x + 1) - (3x² + 1)(2)} / (2x - 1)²

= { 12x² + 2x - 6x -1 - 6x² - 2 } / (4x² - 4x + 1)

= { 6x² - 4x - 3 } / (4x² - 4x + 1)