differentiation

[Fairy111]

i need to differentiate the following:

sqrt[10/(4+x)]

so i re-wrote it as:

[10(4+x)^-1]^1/2

but am getting very confused when i try to differentiate it.

any help would be great! cheers

[Hootenanny]

i need to differentiate the following:

sqrt[10/(4+x)]

so i re-wrote it as:

[10(4+x)^-1]^1/2

but am getting very confused when i try to differentiate it.

any help would be great! cheers
Could you show your attempt at differentiating the expression?

[HallsofIvy]

Step by step using the chain rule
What is the derivative of u-1/2?

What is the derivative of v-1?

[Fairy111]

well first i differentiated 10(4+x)^-1
which is -10(4+x)^-2

but i dont know how to include the sqrt....