- #1

- 143

- 0

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter JamesGoh
- Start date

- #1

- 143

- 0

- #2

Doc Al

Mentor

- 45,051

- 1,364

No. d(2x) = 2dx.

Consider y = ax, where a is a constant. What's dy/dx?

- #3

- 7

- 0

- #4

djeitnstine

Gold Member

- 614

- 0

As the previous poster said d(2x) = 2dx. 'dx' is simply a differential, it is not an operator. I won't get any more technical on that, I'll leave that to the math gurus =]

- #5

- 492

- 0

(d/dx)2x = 2

Treating dx as an infinitesimal (as is done when talking about linear approximations to functions using differentials), you can get

(d)2x = 2(dx).

Treating derivatives like fractions, as was just done, usually works, but you have to be careful.

- #6

- 364

- 2

No, they are related directly proportionally by a factor of 2.

.....

Sorry, I just wanted to get in on that action of saying the same thing in different ways.

- #7

- 143

- 0

thanks everyone ! you helped solved my problem

Share: