Question

how to get the derivative of y=sqrt of (2x)

Answer 1

Use the chain rule. It might help to write it this way: \(y=(2x)^\frac12\)

Answer 2

i thought you got it in previous post

Answer 3

so its (1/2)(2x)^(-1/2)?

Answer 4

No, you have to use the chain rule.

Answer 5

how?

Answer 6

\((f\circ g)'(x)=f'(g(x))g'(x)\). In other words, you take the derivative of the inside, times the derivative of the outside with the inside fixed.